I don’t see any logs regarding calendar. Those are the last logs I have:
{"reqId":"I9xZdLlFFgy93SW09N6Y","level":3,"time":"2022-03-01T16:05:51+00:00","remoteAddr":"xxx.xxx.xxx.xxx","user":"nextcloud_admin","app":"PHP","method":"POST","url":"/apps/rainloop/app/?/Ajax/&q[]=/__ni_uqJhN61wXyBc5Oa5v447ZxHiNbrY6z0C4VhABbCqtEY_w_ZlQP445J1vI1yKDFYyYYy2SMwvkffiIPj0hhfat5fKOdGzfufNYq3KPFpBLBpJVtanNid6oANIHtjhJsdQkjv5b_pTafOkiaWx8OZ9Jdg7xphQBj2CsyVa9RqZMm_Amc_im_mSYPvV5Zouz-qQYaYA8S_La0FNeS7nvTNVGN-9aBjxkl-Jdlu7I3c5SrbOOzt3eGWg84VPAZ-nSUZyvk5S-ZZ0xDZL1DZ2EfhT7yvWBCuhVpWX7iE1WkedtqTcQY5Fv3l4pfU2CckQrvcTi5KiWeF1_1LDkIkt5UEPpIZxK9OUhqVCGSUwzQw0j6XccgLx7JzdTPsXTo5kMW-SdP7B9Ak26Uke02HsGNq35LI/","message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7418","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Waterfox/91.6.0","version":"23.0.2.1","exception":{"Exception":"Error","Message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7418","Code":0,"Trace":[{"function":"onError","class":"OC\\Log\\ErrorHandler","type":"::","args":[2,"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given","/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php",7418]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php","line":7418,"function":"array_filter","args":[["44956"],{"__class__":"Closure"}]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/ServiceActions.php","line":174,"function":"DoMessageMove","class":"RainLoop\\Actions","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":150,"function":"ServiceAjax","class":"RainLoop\\ServiceActions","type":"->","args":[""]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":62,"function":"localHandle","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":85,"function":"__construct","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php","line":94,"function":"Handle","class":"RainLoop\\Service","type":"::","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php","line":243,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/app/index.php","line":23,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":105,"args":["/var/www/html/custom_apps/rainloop/app/index.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":67,"function":"app","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":217,"function":"appPost","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["PageController","appPost",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"rainloop.page.appPost"}]},{"file":"/var/www/html/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/apps/rainloop/app/"]},{"file":"/var/www/html/index.php","line":36,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/Log/ErrorHandler.php","Line":92,"CustomMessage":"--"}}
{"reqId":"oqybY5qmFHYn1tT1xIWw","level":3,"time":"2022-03-01T16:05:52+00:00","remoteAddr":"xxx.xxx.xxx.xxx","user":"nextcloud_admin","app":"PHP","method":"POST","url":"/apps/rainloop/app/?/Ajax/&q[]=/__ni_uqJhN61wXyBc5Oa5v447ZxHiNbrY6z0C4VhABbCqtEY_w_ZlQP445J1vI1yKDFYyYYy2SMwvkffiIPj0hhfat5fKOdGzfufNYq3KPFpBLBpJVtanNid6oANIHtjhJsdQkjv5b_pTafOkiaWx8OZ9Jdg7xphQBj2CsyVa9RqZMm_Amc_im_mSYPvV5Zouz-qQYaYA8S_La0FNeS7nvTNVGN-9aBjxkl-Jdlu7I3c5SrbOOzt3eGWg84VPAZ-nSUZyvk5S-ZZ0xDZL1DZ2EfhT7yvWBCuhVpWX7iE1WkedtqTcQY5Fv3l4pfU2CckQrvcTi5KiWeF1_1LDkIkt5UEPpIZxK9OUhqVCGSUwzQw0j6XccgLx7JzdTPsXTo5kMW-SdP7B9Ak26Uke02HsGNq35LI/","message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7418","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Waterfox/91.6.0","version":"23.0.2.1","exception":{"Exception":"Error","Message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7418","Code":0,"Trace":[{"function":"onError","class":"OC\\Log\\ErrorHandler","type":"::","args":[2,"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given","/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php",7418]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php","line":7418,"function":"array_filter","args":[["44955"],{"__class__":"Closure"}]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/ServiceActions.php","line":174,"function":"DoMessageMove","class":"RainLoop\\Actions","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":150,"function":"ServiceAjax","class":"RainLoop\\ServiceActions","type":"->","args":[""]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":62,"function":"localHandle","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":85,"function":"__construct","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php","line":94,"function":"Handle","class":"RainLoop\\Service","type":"::","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php","line":243,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/app/index.php","line":23,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":105,"args":["/var/www/html/custom_apps/rainloop/app/index.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":67,"function":"app","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":217,"function":"appPost","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["PageController","appPost",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"rainloop.page.appPost"}]},{"file":"/var/www/html/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/apps/rainloop/app/"]},{"file":"/var/www/html/index.php","line":36,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/Log/ErrorHandler.php","Line":92,"CustomMessage":"--"}}
{"reqId":"CIRCdY6DARyhzf68zsyq","level":3,"time":"2022-03-01T16:05:53+00:00","remoteAddr":"xxx.xxx.xxx.xxx","user":"nextcloud_admin","app":"PHP","method":"POST","url":"/apps/rainloop/app/?/Ajax/&q[]=/__ni_uqJhN61wXyBc5Oa5v447ZxHiNbrY6z0C4VhABbCqtEY_w_ZlQP445J1vI1yKDFYyYYy2SMwvkffiIPj0hhfat5fKOdGzfufNYq3KPFpBLBpJVtanNid6oANIHtjhJsdQkjv5b_pTafOkiaWx8OZ9Jdg7xphQBj2CsyVa9RqZMm_Amc_im_mSYPvV5Zouz-qQYaYA8S_La0FNeS7nvTNVGN-9aBjxkl-Jdlu7I3c5SrbOOzt3eGWg84VPAZ-nSUZyvk5S-ZZ0xDZL1DZ2EfhT7yvWBCuhVpWX7iE1WkedtqTcQY5Fv3l4pfU2CckQrvcTi5KiWeF1_1LDkIkt5UEPpIZxK9OUhqVCGSUwzQw0j6XccgLx7JzdTPsXTo5kMW-SdP7B9Ak26Uke02HsGNq35LI/","message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($sUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7241","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Waterfox/91.6.0","version":"23.0.2.1","exception":{"Exception":"Error","Message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($sUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7241","Code":0,"Trace":[{"function":"onError","class":"OC\\Log\\ErrorHandler","type":"::","args":[2,"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($sUid) must be passed by reference, value given","/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php",7241]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php","line":7241,"function":"array_filter","args":[["44959"],{"__class__":"Closure"}]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php","line":7260,"function":"messageSetFlag","class":"RainLoop\\Actions","type":"->","args":["MessageSetSeen","DoMessageSetSeen"]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/ServiceActions.php","line":174,"function":"DoMessageSetSeen","class":"RainLoop\\Actions","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":150,"function":"ServiceAjax","class":"RainLoop\\ServiceActions","type":"->","args":[""]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":62,"function":"localHandle","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":85,"function":"__construct","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php","line":94,"function":"Handle","class":"RainLoop\\Service","type":"::","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php","line":243,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/app/index.php","line":23,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":105,"args":["/var/www/html/custom_apps/rainloop/app/index.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":67,"function":"app","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":217,"function":"appPost","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["PageController","appPost",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"rainloop.page.appPost"}]},{"file":"/var/www/html/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/apps/rainloop/app/"]},{"file":"/var/www/html/index.php","line":36,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/Log/ErrorHandler.php","Line":92,"CustomMessage":"--"}}
{"reqId":"eZD3vlbT4h3nAyx7azaU","level":3,"time":"2022-03-01T16:05:54+00:00","remoteAddr":"xxx.xxx.xxx.xxx","user":"nextcloud_admin","app":"PHP","method":"POST","url":"/apps/rainloop/app/?/Ajax/&q[]=/__ni_uqJhN61wXyBc5Oa5v447ZxHiNbrY6z0C4VhABbCqtEY_w_ZlQP445J1vI1yKDFYyYYy2SMwvkffiIPj0hhfat5fKOdGzfufNYq3KPFpBLBpJVtanNid6oANIHtjhJsdQkjv5b_pTafOkiaWx8OZ9Jdg7xphQBj2CsyVa9RqZMm_Amc_im_mSYPvV5Zouz-qQYaYA8S_La0FNeS7nvTNVGN-9aBjxkl-Jdlu7I3c5SrbOOzt3eGWg84VPAZ-nSUZyvk5S-ZZ0xDZL1DZ2EfhT7yvWBCuhVpWX7iE1WkedtqTcQY5Fv3l4pfU2CckQrvcTi5KiWeF1_1LDkIkt5UEPpIZxK9OUhqVCGSUwzQw0j6XccgLx7JzdTPsXTo5kMW-SdP7B9Ak26Uke02HsGNq35LI/","message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7418","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Waterfox/91.6.0","version":"23.0.2.1","exception":{"Exception":"Error","Message":"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given at /var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php#7418","Code":0,"Trace":[{"function":"onError","class":"OC\\Log\\ErrorHandler","type":"::","args":[2,"RainLoop\\Actions::RainLoop\\{closure}(): Argument #1 ($mUid) must be passed by reference, value given","/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php",7418]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Actions.php","line":7418,"function":"array_filter","args":[["44960"],{"__class__":"Closure"}]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/ServiceActions.php","line":174,"function":"DoMessageMove","class":"RainLoop\\Actions","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":150,"function":"ServiceAjax","class":"RainLoop\\ServiceActions","type":"->","args":[""]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":62,"function":"localHandle","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/libraries/RainLoop/Service.php","line":85,"function":"__construct","class":"RainLoop\\Service","type":"->","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php","line":94,"function":"Handle","class":"RainLoop\\Service","type":"::","args":[]},{"file":"/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php","line":243,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/app/handle.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/app/index.php","line":23,"args":["/var/www/html/custom_apps/rainloop/app/rainloop/v/1.15.0/include.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":105,"args":["/var/www/html/custom_apps/rainloop/app/index.php"],"function":"include"},{"file":"/var/www/html/custom_apps/rainloop/lib/Controller/PageController.php","line":67,"function":"app","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":217,"function":"appPost","class":"OCA\\RainLoop\\Controller\\PageController","type":"->","args":[]},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\RainLoop\\Controller\\PageController"},"appPost"]},{"file":"/var/www/html/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["PageController","appPost",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"rainloop.page.appPost"}]},{"file":"/var/www/html/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/apps/rainloop/app/"]},{"file":"/var/www/html/index.php","line":36,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"/var/www/html/lib/private/Log/ErrorHandler.php","Line":92,"CustomMessage":"--"}}
{"reqId":"2EPPzFItCquH6TnrOr0O","level":2,"time":"2022-03-01T16:10:03+00:00","remoteAddr":"","user":"--","app":"fulltextsearch","method":"","url":"--","message":"Exception while cronIndex: OCA\\FullTextSearch\\Exceptions\\PlatformNotSelectedException - Admin have not selected any IFullTextSearchPlatform","userAgent":"--","version":"23.0.2.1"}
Maybe that exception in cron is not allowing to load the calendar?