iOS App access not possible "Invalid datetime format: 1366 Incorrect string value"

If I try to access Nextcloud via the iOS Nextcloud app, I get a message, that there was an internal server error.

Nextcloud version : 23.0.0
Operating system and version : 20.04.3 LTS
Apache version : Apache/2.4.41
PHP version : 7.4.3
mysql version:10.3.3

The issue you are facing:

Is this the first time you’ve seen this error? : No

Steps to replicate it:

  1. open iOS app
  2. try to login with your credidentials

Nextcloud protocol:

{"reqId":"Y6ApOwo7q1kA0yASlfEt","level":3,"time":"2021-12-08T21:07:44+00:00","remoteAddr":"5.147.88.116","user":"oezzi","app":"index","method":"POST","url":"/index.php/login","message":"An exception occurred while executing a query: SQLSTATE[22007]: Invalid datetime format: 1366 Incorrect string value: '\\xF6Phone...' for column `nextcloud`.`oc_authtoken`.`name` at row 1","userAgent":"öPhone (iOS Files)","version":"23.0.0.10","exception":{"Exception":"OC\\DB\\Exceptions\\DbalException","Message":"An exception occurred while executing a query: SQLSTATE[22007]: Invalid datetime format: 1366 Incorrect string value: '\\xF6Phone...' for column `nextcloud`.`oc_authtoken`.`name` at row 1","Code":1366,"Trace":[{"file":"/var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","line":335,"function":"wrap","class":"OC\\DB\\Exceptions\\DbalException","type":"::"},{"file":"/var/www/nextcloud/lib/public/AppFramework/Db/QBMapper.php","line":139,"function":"executeStatement","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Token/PublicKeyTokenProvider.php","line":88,"function":"insert","class":"OCP\\AppFramework\\Db\\QBMapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Token/Manager.php","line":70,"function":"generateToken","class":"OC\\Authentication\\Token\\PublicKeyTokenProvider","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/User/Session.php","line":690,"function":"generateToken","class":"OC\\Authentication\\Token\\Manager","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/CreateSessionTokenCommand.php","line":69,"function":"createSessionToken","class":"OC\\User\\Session","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":40,"function":"process","class":"OC\\Authentication\\Login\\CreateSessionTokenCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/CompleteLoginCommand.php","line":48,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":40,"function":"process","class":"OC\\Authentication\\Login\\CompleteLoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/LoggedInCheckCommand.php","line":60,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":40,"function":"process","class":"OC\\Authentication\\Login\\LoggedInCheckCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/EmailLoginCommand.php","line":58,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":40,"function":"process","class":"OC\\Authentication\\Login\\EmailLoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/UidLoginCommand.php","line":54,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":40,"function":"process","class":"OC\\Authentication\\Login\\UidLoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/UserDisabledCheckCommand.php","line":58,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":40,"function":"process","class":"OC\\Authentication\\Login\\UserDisabledCheckCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/PreLoginHookCommand.php","line":53,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/Chain.php","line":108,"function":"process","class":"OC\\Authentication\\Login\\PreLoginHookCommand","type":"->"},{"file":"/var/www/nextcloud/core/Controller/LoginController.php","line":329,"function":"process","class":"OC\\Authentication\\Login\\Chain","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":217,"function":"tryLogin","class":"OC\\Core\\Controller\\LoginController","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/lib/private/DB/Exceptions/DbalException.php","Line":71,"Previous":{"Exception":"Doctrine\\DBAL\\Exception\\DriverException","Message":"An exception occurred while executing a query: SQLSTATE[22007]: Invalid datetime format: 1366 Incorrect string value: '\\xF6Phone...' for column `nextcloud`.`oc_authtoken`.`name` at row 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sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":126,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1006,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":36,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/3rdparty/doctrine/dbal/src/Driver/API/MySQL/ExceptionConverter.php","Line":114,"Previous":{"Exception":"Doctrine\\DBAL\\Driver\\PDO\\Exception","Message":"SQLSTATE[22007]: Invalid datetime format: 1366 Incorrect string value: '\\xF6Phone...' for column `nextcloud`.`oc_authtoken`.`name` at row 1","Code":1366,"Trace":[{"file":"/var/www/nextcloud/3rdparty/doctrine/dbal/src/Driver/PDO/Statement.php","line":94,"function":"new","class":"Doctrine\\DBAL\\Driver\\PDO\\Exception","type":"::"},{"file":"/var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php","line":1163,"function":"execute","class":"Doctrine\\DBAL\\Driver\\PDO\\Statement","type":"->"},{"file":"/var/www/nextcloud/lib/private/DB/Connection.php","line":267,"function":"executeStatement","class":"Doctrine\\DBAL\\Connection","type":"->"},{"file":"/var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php","line":354,"function":"executeStatement","class":"OC\\DB\\Connection","type":"->"},{"file":"/var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","line":287,"function":"execute","class":"Doctrine\\DBAL\\Query\\QueryBuilder","type":"->"},{"file":"/var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","line":333,"function":"execute","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/var/www/nextcloud/lib/public/AppFramework/Db/QBMapper.php","line":139,"function":"executeStatement","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Token/PublicKeyTokenProvider.php","line":88,"function":"insert","class":"OCP\\AppFramework\\Db\\QBMapper","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Token/Manager.php","line":70,"function":"generateToken","class":"OC\\Authentication\\Token\\PublicKeyTokenProvider","type":"->","args":["*** 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1 Like

Do you have non-ascii characters in your iOS name? I have a similar issue (Nextcloud App not working, since latest update?) and the log mentions the only non-ascii character from my name, so this seems related…

There is an open issue on Github so this is most likely a confirmed bug Nextcloud 4.1.0 IpadOS issue with all servers · Issue #1791 · nextcloud/ios · GitHub.