Logging in Maintenance Mode

I am running Nextcloud, the recent version It is running fine since years …
The log level is configured to the value 2. When nextcloud is in maintenance mode and an application is trying to access Nextcloud (via WebDAV or Sync Client for example), Nextcloud writes log entries with level 4. I think, these entries are not necessary and the log level 4 (Warning) is too high. Is it possible to suppress the logs for accessing Nextcloud in maintenance mode or to change the severity to level 1?

Thank you