Fatal error: Uncaught Error: Class "OCP\AppFramework\Db\Mapper" not found in /home/.sites/740/site1364/web/cloud/-/apps/twofactor_backupcodes/lib/Db/BackupCodeMapper.php:29
Stack trace:
#0 {main}
  thrown in /home/.sites/740/site1364/web/cloud/-/apps/twofactor_backupcodes/lib/Db/BackupCodeMapper.php on line 29