Error: database schema has changed

I have installed 12.0.4 via the Web Installer on a shared hosting. Although everything looks fine there is an error in the log:

Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'SELECT "uid", "displayname" FROM "oc_users" WHERE LOWER("uid") = LOWER(?)' with params ["tim"]: SQLSTATE[HY000]: General error: 17 database schema has changed at /var/www/virtual/tim/html/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractSQLiteDriver.php#85

How can I solve this?