Deleting a shared Folder

Hello,

i have a problem with deleting a shared folder.
A friend shared one folder with me, now he stopped the sharing. But the folder stays in my WebUi. I cannot delete them.

I m the owner of the nextcloud server.
Nextcloud: 16.0.5

[webdav] Fatal: Sabre\DAV\Exception\ServiceUnavailable: at <>

  1. /snap/nextcloud/16232/htdocs/3rdparty/sabre/dav/lib/DAV/Tree.php line 76
    OCA\DAV\Connector\Sabre\Directory->getChild(“CFL”)
  2. /snap/nextcloud/16232/htdocs/3rdparty/sabre/dav/lib/DAV/Tree.php line 178
    Sabre\DAV\Tree->getNodeForPath(“files/jerome/CFL”)
  3. /snap/nextcloud/16232/htdocs/3rdparty/sabre/dav/lib/DAV/CorePlugin.php line 287
    Sabre\DAV\Tree->delete(“files/jerome/CFL”)
  4. <>
    Sabre\DAV\CorePlugin->httpDelete(Sabre\HTTP\Reque … "}, Sabre\HTTP\Response {})
  5. /snap/nextcloud/16232/htdocs/3rdparty/sabre/event/lib/EventEmitterTrait.php line 105
    undefinedundefinedcall_user_func_array([Sabre\DAV\CorePlugin {},“httpDelete”], [Sabre\HTTP\Requ … }])
  6. /snap/nextcloud/16232/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 479
    Sabre\Event\EventEmitter->emit(“method:DELETE”, [Sabre\HTTP\Requ … }])
  7. /snap/nextcloud/16232/htdocs/3rdparty/sabre/dav/lib/DAV/Server.php line 254
    Sabre\DAV\Server->invokeMethod(Sabre\HTTP\Reque … "}, Sabre\HTTP\Response {})
  8. /snap/nextcloud/16232/htdocs/apps/dav/lib/Server.php line 316
    Sabre\DAV\Server->exec()
  9. /snap/nextcloud/16232/htdocs/apps/dav/appinfo/v2/remote.php line 35
    OCA\DAV\Server->exec()
  10. /snap/nextcloud/16232/htdocs/remote.php line 163
    undefinedundefinedrequire_once("/snap/nextcloud … p")

DELETE /remote.php/dav/files/jerome/CFL
from******** by jerome at 2019-10-03T12:02:16+00:00