How can I troubleshoot sync problems?

I’m not sure if tag nc33 revers to the desktop or the server version but in this case it does not matter.

Client Version 33.0.2 AppImage on Fedora 43 and server version 33.0.2 in a docker on debian.

After being a day at work and coming home I see:

The encrypted files are missing on my workstation. And sync seems to be stalled.

What would be the proper troubleshooting steps to not losing data?

Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. :heart:

The Basics

  • Nextcloud Server version:
    • Nextcloud 33.0.2
  • Operating system and version:
    • #1 SMP PREEMPT Debian 1:6.12.75-1+rpt1~bookworm (2026-03-11)
  • Web server and version:
    • Server version: Apache/2.4.66 (Debian)
  • Reverse proxy and version:
    • nginx version: openresty/1.27.1.2
  • PHP version:
    • PHP 8.4.19 (cli) (built: Mar 16 2026 22:27:46) (NTS)
  • Is this the first time you’ve seen this error? (Yes / No):
    • yes
  • When did this problem seem to first start?
    • recently
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • OMV Container
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • No

Summary of the issues you are facing:

Errors in sync

Steps to replicate it (hint: details matter!):

Log entries

Nextcloud

{"reqId":"wL0OY8SdPOoWzM11Yh4B","level":3,"time":"2026-04-05T22:01:27+00:00","remoteAddr":"83.97.85.45","user":"johannes","app":"PHP","method":"GET","url":"/ocs/v1.php/cloud/capabilities?format=json","scriptName":"/ocs/v1.php","message":"OCA\\Onlyoffice\\FileCreator::create(): Implicitly marking parameter $templateId as nullable is deprecated, the explicit nullable type must be used instead at /var/www/html/custom_apps/onlyoffice/lib/FileCreator.php#145","userAgent":"Mozilla/5.0 (Linux) mirall/33.0.2 (build 38494) (Nextcloud, fedora-6.19.10-200.fc43.x86_64 ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"33.0.2.2","clientReqId":"e2eaa9b7-9d7c-4622-bc66-9784ce21b159","data":{"app":"PHP"}}
{"reqId":"9dL1ntrDaU8XQkwC26i6","level":3,"time":"2026-04-06T06:59:45+00:00","remoteAddr":"83.97.85.45","user":"king_admin","app":"jsresourceloader","method":"GET","url":"/settings/admin/onlyoffice","scriptName":"/index.php","message":"Could not find resource core/js/dist/systemtags.js to load","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:149.0) Gecko/20100101 Firefox/149.0","version":"33.0.2.2","data":{"app":"jsresourceloader"}}
{"reqId":"XMGVWSPAmSUBb79tcPYo","level":3,"time":"2026-04-06T22:01:54+00:00","remoteAddr":"83.97.85.45","user":"johannes","app":"PHP","method":"GET","url":"/ocs/v1.php/cloud/capabilities?format=json","scriptName":"/ocs/v1.php","message":"OCA\\Onlyoffice\\FileCreator::create(): Implicitly marking parameter $templateId as nullable is deprecated, the explicit nullable type must be used instead at /var/www/html/custom_apps/onlyoffice/lib/FileCreator.php#145","userAgent":"Mozilla/5.0 (Linux) mirall/33.0.2 (build 38494) (Nextcloud, fedora-6.19.10-200.fc43.x86_64 ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"33.0.2.2","clientReqId":"a2c4b0a9-cc26-4afc-b2fb-6c397004edb9","data":{"app":"PHP"}}
{"reqId":"kR94U0meiXlvgfmyWBBg","level":3,"time":"2026-04-07T09:55:16+00:00","remoteAddr":"46.140.241.51","user":"johannes","app":"notes","method":"GET","url":"/apps/notes/notes?pruneBefore=1775555682","scriptName":"/index.php","message":"Controller failed with OCP\\Lock\\LockedException","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:149.0) Gecko/20100101 Firefox/149.0","version":"33.0.2.2","exception":{"Exception":"OCP\\Lock\\LockedException","Message":"\"/johannes/files/Notes\" is locked, existing lock on file: 3 shared locks","Code":0,"Trace":[{"file":"/var/www/html/lib/private/Files/View.php","line":1201,"function":"changeLock","class":"OC\\Files\\View","type":"->","args":["/johannes/files/Notes",2]},{"file":"/var/www/html/lib/private/Files/View.php","line":213,"function":"basicOperation","class":"OC\\Files\\View","type":"->","args":["mkdir","/johannes/files/Notes",["create","write"]]},{"file":"/var/www/html/lib/private/Files/Node/Folder.php","line":134,"function":"mkdir","class":"OC\\Files\\View","type":"->","args":["/johannes/files/Notes"]},{"function":"newFolder","class":"OC\\Files\\Node\\Folder","type":"->","args":["Notes"]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":65,"function":"call_user_func_array","args":[[{"__class__":"OC\\Files\\Node\\Folder"},"newFolder"],["Notes"]]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":433,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["newFolder",["Notes"]]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NoteUtil.php","line":220,"function":"newFolder","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["Notes"]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NotesService.php","line":162,"function":"getOrCreateNotesFolder","class":"OCA\\Notes\\Service\\NoteUtil","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NotesService.php","line":36,"function":"getNotesFolder","class":"OCA\\Notes\\Service\\NotesService","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/Helper.php","line":82,"function":"getAll","class":"OCA\\Notes\\Service\\NotesService","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/NotesController.php","line":81,"function":"getNotesAndCategories","class":"OCA\\Notes\\Controller\\Helper","type":"->","args":[1775555682,["etag","content"]]},{"file":"/var/www/html/custom_apps/notes/lib/Service/Util.php","line":31,"function":"{closure:OCA\\Notes\\Controller\\NotesController::index():67}","class":"OCA\\Notes\\Controller\\NotesController","type":"->","args":["*** 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is locked, existing lock on file: 3 shared locks","Code":0,"Trace":[{"file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php","line":318,"function":"changeLock","class":"OC\\Files\\Storage\\Common","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php","line":318,"function":"changeLock","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php","line":318,"function":"changeLock","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/View.php","line":2096,"function":"changeLock","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/View.php","line":1201,"function":"changeLock","class":"OC\\Files\\View","type":"->","args":["/johannes/files/Notes",2]},{"file":"/var/www/html/lib/private/Files/View.php","line":213,"function":"basicOperation","class":"OC\\Files\\View","type":"->","args":["mkdir","/johannes/files/Notes",["create","write"]]},{"file":"/var/www/html/lib/private/Files/Node/Folder.php","line":134,"function":"mkdir","class":"OC\\Files\\View","type":"->","args":["/johannes/files/Notes"]},{"function":"newFolder","class":"OC\\Files\\Node\\Folder","type":"->","args":["Notes"]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":65,"function":"call_user_func_array","args":[[{"__class__":"OC\\Files\\Node\\Folder"},"newFolder"],["Notes"]]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":433,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["newFolder",["Notes"]]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NoteUtil.php","line":220,"function":"newFolder","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["Notes"]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NotesService.php","line":162,"function":"getOrCreateNotesFolder","class":"OCA\\Notes\\Service\\NoteUtil","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NotesService.php","line":36,"function":"getNotesFolder","class":"OCA\\Notes\\Service\\NotesService","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/Helper.php","line":82,"function":"getAll","class":"OCA\\Notes\\Service\\NotesService","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/NotesController.php","line":81,"function":"getNotesAndCategories","class":"OCA\\Notes\\Controller\\Helper","type":"->","args":[1775555682,["etag","content"]]},{"file":"/var/www/html/custom_apps/notes/lib/Service/Util.php","line":31,"function":"{closure:OCA\\Notes\\Controller\\NotesController::index():67}","class":"OCA\\Notes\\Controller\\NotesController","type":"->","args":["*** 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is locked, existing lock on file: 3 shared locks","Code":0,"Trace":[{"file":"/var/www/html/lib/private/Files/Storage/Common.php","line":702,"function":"changeLock","class":"OC\\Lock\\MemcacheLockingProvider","type":"->","args":["files/d14f6589fb6ca862a292049ef1209246",2]},{"file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php","line":318,"function":"changeLock","class":"OC\\Files\\Storage\\Common","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php","line":318,"function":"changeLock","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php","line":318,"function":"changeLock","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/View.php","line":2096,"function":"changeLock","class":"OC\\Files\\Storage\\Wrapper\\Wrapper","type":"->","args":["files/Notes",2,{"__class__":"OC\\Lock\\MemcacheLockingProvider"}]},{"file":"/var/www/html/lib/private/Files/View.php","line":1201,"function":"changeLock","class":"OC\\Files\\View","type":"->","args":["/johannes/files/Notes",2]},{"file":"/var/www/html/lib/private/Files/View.php","line":213,"function":"basicOperation","class":"OC\\Files\\View","type":"->","args":["mkdir","/johannes/files/Notes",["create","write"]]},{"file":"/var/www/html/lib/private/Files/Node/Folder.php","line":134,"function":"mkdir","class":"OC\\Files\\View","type":"->","args":["/johannes/files/Notes"]},{"function":"newFolder","class":"OC\\Files\\Node\\Folder","type":"->","args":["Notes"]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":65,"function":"call_user_func_array","args":[[{"__class__":"OC\\Files\\Node\\Folder"},"newFolder"],["Notes"]]},{"file":"/var/www/html/lib/private/Files/Node/LazyFolder.php","line":433,"function":"__call","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["newFolder",["Notes"]]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NoteUtil.php","line":220,"function":"newFolder","class":"OC\\Files\\Node\\LazyFolder","type":"->","args":["Notes"]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NotesService.php","line":162,"function":"getOrCreateNotesFolder","class":"OCA\\Notes\\Service\\NoteUtil","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Service/NotesService.php","line":36,"function":"getNotesFolder","class":"OCA\\Notes\\Service\\NotesService","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/Helper.php","line":82,"function":"getAll","class":"OCA\\Notes\\Service\\NotesService","type":"->","args":["johannes",true]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/NotesController.php","line":81,"function":"getNotesAndCategories","class":"OCA\\Notes\\Controller\\Helper","type":"->","args":[1775555682,["etag","content"]]},{"file":"/var/www/html/custom_apps/notes/lib/Service/Util.php","line":31,"function":"{closure:OCA\\Notes\\Controller\\NotesController::index():67}","class":"OCA\\Notes\\Controller\\NotesController","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/Helper.php","line":146,"function":"retryIfLocked","class":"OCA\\Notes\\Service\\Util","type":"::","args":[{"__class__":"Closure"}]},{"file":"/var/www/html/custom_apps/notes/lib/Controller/NotesController.php","line":67,"function":"handleErrorResponse","class":"OCA\\Notes\\Controller\\Helper","type":"->","args":[{"__class__":"Closure"}]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":205,"function":"index","class":"OCA\\Notes\\Controller\\NotesController","type":"->","args":[1775555682]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":118,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Notes\\Controller\\NotesController"},"index"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":153,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Notes\\Controller\\NotesController"},"index"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":321,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Notes\\Controller\\NotesController","index",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"notes.notes.index"}]},{"file":"/var/www/html/lib/base.php","line":1155,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/apps/notes/notes"]},{"file":"/var/www/html/index.php","line":25,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/Lock/MemcacheLockingProvider.php","Line":126}},"message":"Controller failed with OCP\\Lock\\LockedException","exception":"{\"class\":\"OCP\\Lock\\LockedException\",\"message\":\"\\\"/johannes/files/Notes\\\" is locked, existing lock on file: 3 shared locks\",\"code\":0,\"file\":\"/var/www/html/lib/private/Files/View.php:2104\",\"trace\":\"#0 /var/www/html/lib/private/Files/View.php(1201): OC\\Files\\View->changeLock('/johannes/files...', 2)\\n#1 /var/www/html/lib/private/Files/View.php(213): OC\\Files\\View->basicOperation('mkdir', '/johannes/files...', Array)\\n#2 /var/www/html/lib/private/Files/Node/Folder.php(134): OC\\Files\\View->mkdir('/johannes/files...')\\n#3 [internal function]: OC\\Files\\Node\\Folder->newFolder('Notes')\\n#4 /var/www/html/lib/private/Files/Node/LazyFolder.php(65): call_user_func_array(Array, Array)\\n#5 /var/www/html/lib/private/Files/Node/LazyFolder.php(433): OC\\Files\\Node\\LazyFolder->__call('newFolder', Array)\\n#6 /var/www/html/custom_apps/notes/lib/Service/NoteUtil.php(220): OC\\Files\\Node\\LazyFolder->newFolder('Notes')\\n#7 /var/www/html/custom_apps/notes/lib/Service/NotesService.php(162): OCA\\Notes\\Service\\NoteUtil->getOrCreateNotesFolder('johannes', true)\\n#8 /var/www/html/custom_apps/notes/lib/Service/NotesService.php(36): OCA\\Notes\\Service\\NotesService->getNotesFolder('johannes', true)\\n#9 /var/www/html/custom_apps/notes/lib/Controller/Helper.php(82): OCA\\Notes\\Service\\NotesService->getAll('johannes', true)\\n#10 /var/www/html/custom_apps/notes/lib/Controller/NotesController.php(81): OCA\\Notes\\Controller\\Helper->getNotesAndCategories(1775555682, Array)\\n#11 /var/www/html/custom_apps/notes/lib/Service/Util.php(31): OCA\\Notes\\Controller\\NotesController->{closure:OCA\\Notes\\Controller\\NotesController::index():67}()\\n#12 /var/www/html/custom_apps/notes/lib/Controller/Helper.php(146): OCA\\Notes\\Service\\Util::retryIfLocked(Object(Closure))\\n#13 /var/www/html/custom_apps/notes/lib/Controller/NotesController.php(67): OCA\\Notes\\Controller\\Helper->handleErrorResponse(Object(Closure))\\n#14 /var/www/html/lib/private/AppFramework/Http/Dispatcher.php(205): OCA\\Notes\\Controller\\NotesController->index(1775555682)\\n#15 /var/www/html/lib/private/AppFramework/Http/Dispatcher.php(118): OC\\AppFramework\\Http\\Dispatcher->executeController(Object(OCA\\Notes\\Controller\\NotesController), 'index')\\n#16 /var/www/html/lib/private/AppFramework/App.php(153): OC\\AppFramework\\Http\\Dispatcher->dispatch(Object(OCA\\Notes\\Controller\\NotesController), 'index')\\n#17 /var/www/html/lib/private/Route/Router.php(321): OC\\AppFramework\\App::main('OCA\\\\Notes\\\\Contr...', 'index', Object(OC\\AppFramework\\DependencyInjection\\DIContainer), Array)\\n#18 /var/www/html/lib/base.php(1155): OC\\Route\\Router->match('/apps/notes/not...')\\n#19 /var/www/html/index.php(25): OC::handleRequest()\\n#20 {main}\",\"previous\":{\"class\":\"OCP\\Lock\\LockedException\",\"message\":\"\\\"files/d14f6589fb6ca862a292049ef1209246\\\"(\\\"files/Notes\\\") is locked, existing lock on file: 3 shared locks\",\"code\":0,\"file\":\"/var/www/html/lib/private/Files/Storage/Common.php:704\",\"trace\":\"#0 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(318): OC\\Files\\Storage\\Common->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#1 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(318): OC\\Files\\Storage\\Wrapper\\Wrapper->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#2 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(318): OC\\Files\\Storage\\Wrapper\\Wrapper->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#3 /var/www/html/lib/private/Files/View.php(2096): OC\\Files\\Storage\\Wrapper\\Wrapper->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#4 /var/www/html/lib/private/Files/View.php(1201): OC\\Files\\View->changeLock('/johannes/files...', 2)\\n#5 /var/www/html/lib/private/Files/View.php(213): OC\\Files\\View->basicOperation('mkdir', '/johannes/files...', Array)\\n#6 /var/www/html/lib/private/Files/Node/Folder.php(134): OC\\Files\\View->mkdir('/johannes/files...')\\n#7 [internal function]: OC\\Files\\Node\\Folder->newFolder('Notes')\\n#8 /var/www/html/lib/private/Files/Node/LazyFolder.php(65): call_user_func_array(Array, Array)\\n#9 /var/www/html/lib/private/Files/Node/LazyFolder.php(433): OC\\Files\\Node\\LazyFolder->__call('newFolder', Array)\\n#10 /var/www/html/custom_apps/notes/lib/Service/NoteUtil.php(220): OC\\Files\\Node\\LazyFolder->newFolder('Notes')\\n#11 /var/www/html/custom_apps/notes/lib/Service/NotesService.php(162): OCA\\Notes\\Service\\NoteUtil->getOrCreateNotesFolder('johannes', true)\\n#12 /var/www/html/custom_apps/notes/lib/Service/NotesService.php(36): OCA\\Notes\\Service\\NotesService->getNotesFolder('johannes', true)\\n#13 /var/www/html/custom_apps/notes/lib/Controller/Helper.php(82): OCA\\Notes\\Service\\NotesService->getAll('johannes', true)\\n#14 /var/www/html/custom_apps/notes/lib/Controller/NotesController.php(81): OCA\\Notes\\Controller\\Helper->getNotesAndCategories(1775555682, Array)\\n#15 /var/www/html/custom_apps/notes/lib/Service/Util.php(31): OCA\\Notes\\Controller\\NotesController->{closure:OCA\\Notes\\Controller\\NotesController::index():67}()\\n#16 /var/www/html/custom_apps/notes/lib/Controller/Helper.php(146): OCA\\Notes\\Service\\Util::retryIfLocked(Object(Closure))\\n#17 /var/www/html/custom_apps/notes/lib/Controller/NotesController.php(67): OCA\\Notes\\Controller\\Helper->handleErrorResponse(Object(Closure))\\n#18 /var/www/html/lib/private/AppFramework/Http/Dispatcher.php(205): OCA\\Notes\\Controller\\NotesController->index(1775555682)\\n#19 /var/www/html/lib/private/AppFramework/Http/Dispatcher.php(118): OC\\AppFramework\\Http\\Dispatcher->executeController(Object(OCA\\Notes\\Controller\\NotesController), 'index')\\n#20 /var/www/html/lib/private/AppFramework/App.php(153): OC\\AppFramework\\Http\\Dispatcher->dispatch(Object(OCA\\Notes\\Controller\\NotesController), 'index')\\n#21 /var/www/html/lib/private/Route/Router.php(321): OC\\AppFramework\\App::main('OCA\\\\Notes\\\\Contr...', 'index', Object(OC\\AppFramework\\DependencyInjection\\DIContainer), Array)\\n#22 /var/www/html/lib/base.php(1155): OC\\Route\\Router->match('/apps/notes/not...')\\n#23 /var/www/html/index.php(25): OC::handleRequest()\\n#24 {main}\",\"previous\":{\"class\":\"OCP\\Lock\\LockedException\",\"message\":\"\\\"files/d14f6589fb6ca862a292049ef1209246\\\" is locked, existing lock on file: 3 shared locks\",\"code\":0,\"file\":\"/var/www/html/lib/private/Lock/MemcacheLockingProvider.php:126\",\"trace\":\"#0 /var/www/html/lib/private/Files/Storage/Common.php(702): OC\\Lock\\MemcacheLockingProvider->changeLock('files/d14f6589f...', 2)\\n#1 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(318): OC\\Files\\Storage\\Common->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#2 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(318): OC\\Files\\Storage\\Wrapper\\Wrapper->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#3 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(318): OC\\Files\\Storage\\Wrapper\\Wrapper->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#4 /var/www/html/lib/private/Files/View.php(2096): OC\\Files\\Storage\\Wrapper\\Wrapper->changeLock('files/Notes', 2, Object(OC\\Lock\\MemcacheLockingProvider))\\n#5 /var/www/html/lib/private/Files/View.php(1201): OC\\Files\\View->changeLock('/johannes/files...', 2)\\n#6 /var/www/html/lib/private/Files/View.php(213): OC\\Files\\View->basicOperation('mkdir', '/johannes/files...', Array)\\n#7 /var/www/html/lib/private/Files/Node/Folder.php(134): OC\\Files\\View->mkdir('/johannes/files...')\\n#8 [internal function]: OC\\Files\\Node\\Folder->newFolder('Notes')\\n#9 /var/www/html/lib/private/Files/Node/LazyFolder.php(65): call_user_func_array(Array, Array)\\n#10 /var/www/html/lib/private/Files/Node/LazyFolder.php(433): OC\\Files\\Node\\LazyFolder->__call('newFolder', Array)\\n#11 /var/www/html/custom_apps/notes/lib/Service/NoteUtil.php(220): OC\\Files\\Node\\LazyFolder->newFolder('Notes')\\n#12 /var/www/html/custom_apps/notes/lib/Service/NotesService.php(162): OCA\\Notes\\Service\\NoteUtil->getOrCreateNotesFolder('johannes', true)\\n#13 /var/www/html/custom_apps/notes/lib/Service/NotesService.php(36): OCA\\Notes\\Service\\NotesService->getNotesFolder('johannes', true)\\n#14 /var/www/html/custom_apps/notes/lib/Controller/Helper.php(82): OCA\\Notes\\Service\\NotesService->getAll('johannes', true)\\n#15 /var/www/html/custom_apps/notes/lib/Controller/NotesController.php(81): OCA\\Notes\\Controller\\Helper->getNotesAndCategories(1775555682, Array)\\n#16 /var/www/html/custom_apps/notes/lib/Service/Util.php(31): OCA\\Notes\\Controller\\NotesController->{closure:OCA\\Notes\\Controller\\NotesController::index():67}()\\n#17 /var/www/html/custom_apps/notes/lib/Controller/Helper.php(146): OCA\\Notes\\Service\\Util::retryIfLocked(Object(Closure))\\n#18 /var/www/html/custom_apps/notes/lib/Controller/NotesController.php(67): OCA\\Notes\\Controller\\Helper->handleErrorResponse(Object(Closure))\\n#19 /var/www/html/lib/private/AppFramework/Http/Dispatcher.php(205): OCA\\Notes\\Controller\\NotesController->index(1775555682)\\n#20 /var/www/html/lib/private/AppFramework/Http/Dispatcher.php(118): OC\\AppFramework\\Http\\Dispatcher->executeController(Object(OCA\\Notes\\Controller\\NotesController), 'index')\\n#21 /var/www/html/lib/private/AppFramework/App.php(153): OC\\AppFramework\\Http\\Dispatcher->dispatch(Object(OCA\\Notes\\Controller\\NotesController), 'index')\\n#22 /var/www/html/lib/private/Route/Router.php(321): OC\\AppFramework\\App::main('OCA\\\\Notes\\\\Contr...', 'index', Object(OC\\AppFramework\\DependencyInjection\\DIContainer), Array)\\n#23 /var/www/html/lib/base.php(1155): OC\\Route\\Router->match('/apps/notes/not...')\\n#24 /var/www/html/index.php(25): OC::handleRequest()\\n#25 {main}\"}}}","CustomMessage":"Controller failed with OCP\\Lock\\LockedException"}}

Web Browser

Apps

Enabled:

  • activity: 6.0.0
  • admin_audit: 1.23.0
  • bookmarks: 16.1.3
  • brewmemo: 0.6.0
  • bruteforcesettings: 6.0.0
  • calendar: 6.2.2
  • circles: 33.0.0
  • cloud_federation_api: 1.17.0
  • comments: 1.23.0
  • contacts: 8.4.3
  • contactsinteraction: 1.14.1
  • cookbook: 0.11.6
  • dashboard: 7.13.0
  • dav: 1.36.0
  • encryption: 2.21.0
  • end_to_end_encryption: 2.0.2
  • federatedfilesharing: 1.23.0
  • federation: 1.23.0
  • files: 2.5.0
  • files_downloadlimit: 5.1.0
  • files_external: 1.25.1
  • files_pdfviewer: 6.0.0
  • files_reminders: 1.6.0
  • files_sharing: 1.25.2
  • files_trashbin: 1.23.0
  • files_versions: 1.26.0
  • firstrunwizard: 6.0.0
  • fulltextsearch: 33.0.0
  • groupfolders: 21.0.6
  • logreader: 6.0.0
  • lookup_server_connector: 1.21.0
  • nextcloud_announcements: 5.0.0
  • notes: 4.13.1
  • notifications: 6.0.0
  • oauth2: 1.21.0
  • onlyoffice: 10.0.0
  • password_policy: 5.0.0
  • photos: 6.0.0
  • privacy: 5.0.0
  • profile: 1.2.0
  • provisioning_api: 1.23.0
  • recommendations: 6.0.0
  • related_resources: 4.0.0
  • serverinfo: 5.0.0
  • settings: 1.16.0
  • sharebymail: 1.23.0
  • support: 5.0.0
  • survey_client: 5.0.0
  • suspicious_login: 11.0.0
  • systemtags: 1.23.0
  • text: 7.0.0
  • theming: 2.8.0
  • twofactor_backupcodes: 1.22.0
  • twofactor_nextcloud_notification: 7.0.0
  • twofactor_totp: 15.0.0
  • updatenotification: 1.23.0
  • uppush: 2.4.0
  • user_status: 1.13.0
  • viewer: 6.0.0
  • weather_status: 1.13.0
  • webhook_listeners: 1.5.0
  • workflowengine: 2.15.0
    Disabled:
  • app_api: 33.0.0 (installed 32.0.0)
  • camerarawpreviews: 0.8.8 (installed 0.8.8)
  • keeweb: 0.6.22 (installed 0.6.22)
  • richdocuments: 10.1.2 (installed 10.1.2)
  • testing: 1.23.0
  • user_ldap: 1.24.0 (installed 1.22.0)

EDIT: When i start the AppImage from terminal this is what I see:

$ Applications/Nextcloud-33.0.2-x86_64.AppImage 
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in ""
nextcloud.gui.application: Migrating old config from "/home/j/.local/share/Nextcloud" to "/home/j/.config/Nextcloud"
nextcloud.gui.application: Failed to move the old config directory to its new location ( "/home/j/.local/share/Nextcloud" to "/home/j/.config/Nextcloud" )
nextcloud.gui.application: Will move the individual files QList("cloud.sbw.media_sync.log", "kingma.cloud_sync.log", "Nextcloud_sync.log")
nextcloud.gui.application: Fallback move of  "cloud.sbw.media_sync.log" also failed
nextcloud.gui.application: Fallback move of  "kingma.cloud_sync.log" also failed
nextcloud.gui.application: Fallback move of  "Nextcloud_sync.log" also failed

This it the logfile for the broken Nextcloud connection:

#=#=#=# Syncrun started 2026-04-07T17:06:56Z
#=#=#=#=# Propagation starts 2026-04-07T17:07:00Z (last step: 4467 msec, total: 4467 msec)
||Encrypted/VPN/.cert/ca.crt|8|2|1768326240|0f64dba53df0475cff06a23d329e4fed|1407|00034311ocldln2fgpb5|2|File with name /Encrypted/VPN/.cert/ca.crt could not be located|404|0|0|49fa89c7-c5d3-4126-94ac-bf1253ac4bb5|
||Encrypted/VPN/.cert/client.crt|8|2|1768326030|b1aa674e3ed988eccd36dc1540c723f2|1273|00034318ocldln2fgpb5|2|File with name /Encrypted/VPN/.cert/client.crt could not be located|404|0|0|62ba30d5-9ce4-4b8b-9f72-3b7d07753d58|
||Encrypted/VPN/.cert/client.ovpn|8|2|1762168798|eb1de8c012b729a1b7a3ea99d6c8a50b|508|00034324ocldln2fgpb5|2|File with name /Encrypted/VPN/.cert/client.ovpn could not be located|404|0|0|d87d0ef5-0793-43f9-adc5-61108b88e607|
||Encrypted/VPN/.cert/client.pem|8|2|1768326133|f252c4d3e97f4aa5b6219e8dd794e63d|1720|00034330ocldln2fgpb5|2|File with name /Encrypted/VPN/.cert/client.pem could not be located|404|0|0|f3d3330b-e4a5-491f-894e-a60d89cb8fa1|
||Encrypted/VPN/SBW.txt|8|2|1768335170|dea313e2499557aba46e64e6e8a6f8b9|801|00034336ocldln2fgpb5|2|File with name /Encrypted/VPN/SBW.txt could not be located|404|0|0|3f9ba738-8bfe-4e04-97cd-ea12ce55011c|
||Encrypted/VPN/sbw.ovpn|8|2|1768330590|b3e21a7fe49b51637f9788ed54c4bb36|493|00034342ocldln2fgpb5|2|File with name /Encrypted/VPN/sbw.ovpn could not be located|404|0|0|8c1daaeb-a15b-4f4a-85a2-86d798fc6049|
||Encrypted/VPN/sbw_openvpn.sh|8|2|1768334677|a2b52a761ba71f7b28f0bb18f76b8ed2|352|00034348ocldln2fgpb5|2|File with name /Encrypted/VPN/sbw_openvpn.sh could not be located|404|0|0|ce319932-11c7-48eb-aa75-aafcb0c31ede|
||Encrypted/insta dashboard/urls.txt|8|2|1774882143|f1a63c660f43259b9fec9ac445b5e78f|3326|00034390ocldln2fgpb5|2|File with name /Encrypted/insta dashboard/urls.txt could not be located|404|0|0|0a37d795-fe7e-4ce7-9e40-61d3883a2438|
||Encrypted/unterschrift.png|8|2|1773644377|e88551b407b6037285fabda2260edff1|5939|00034354ocldln2fgpb5|2|File with name /Encrypted/unterschrift.png could not be located|404|0|0|b2c84c70-02a1-4d53-b383-c65184cc4aa9|
#=#=#=# Syncrun finished 2026-04-07T17:07:04Z (last step: 3593 msec, total: 8060 msec)