Logfile says: (doesn´t help me at all)
{"reqId":"GmoBA8G4bniBKFZJjPFY","level":0,"time":"2021-07-22T08:30:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Update required, skipping cron","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Updater::setDebugLogLevel: Set log level to debug","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":0,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"starting upgrade from 21.0.3.1 to 22.0.0.11","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"no app in context","method":"","url":"--","message":"Deprecated event type for \\OC\\Repair::step: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Repair::step: Repair step: Repair MySQL collation","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"no app in context","method":"","url":"--","message":"Deprecated event type for \\OC\\Repair::info: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Repair::info: Repair info: All tables already have the correct collation -> nothing to do","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"no app in context","method":"","url":"--","message":"Deprecated event type for \\OC\\Repair::step: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Repair::step: Repair step: Repair SQLite autoincrement","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"no app in context","method":"","url":"--","message":"Deprecated event type for \\OC\\Repair::step: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:05+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Repair::step: Repair step: Copy data from accounts table when migrating from ownCloud","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"no app in context","method":"","url":"--","message":"Deprecated event type for \\OC\\Repair::step: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Repair::step: Repair step: Drop account terms table when migrating from ownCloud","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Updater::dbUpgradeBefore: Updating database schema","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Updater::dbUpgrade: Updated database","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":0,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"encryption","method":"","url":"--","message":"/appinfo/app.php is deprecated, use \\OCP\\AppFramework\\Bootstrap\\IBootstrap on the application class instead.","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":0,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"files_sharing","method":"","url":"--","message":"/appinfo/app.php is deprecated, use \\OCP\\AppFramework\\Bootstrap\\IBootstrap on the application class instead.","userAgent":"--","version":"21.0.3.1"}
{"reqId":"pOFD4Cm2MJ3yC9ANFEDl","level":1,"time":"2021-07-22T08:30:06+00:00","remoteAddr":"","user":"--","app":"updater","method":"","url":"--","message":"\\OC\\Updater::checkAppStoreAppBefore: Checking for update of app \"accessibility\" in appstore","userAgent":"--","version":"21.0.3.1"}
{"reqId":"fkejDF9cdIrn6iBM1IZJ","level":0,"time":"2021-07-22T08:35:02+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Update required, skipping cron","userAgent":"--","version":"21.0.3.1"}