Hi @turker.tunali
It sounds like Metabase wasn’t closed correctly, which might cause corruption of the H2 database.
You either have to figure out the corruption in the H2 database or restore from backup (probably the easiest).
And then you need to migrate away from H2, since this is the exact reason why it’s not recommended for production:
https://www.metabase.com/docs/latest/operations-guide/start.html#migrating-from-using-the-h2-database-to-mysql-or-postgres