@kaxline A couple of months ago, we pushed a package update that migrated tables to have the wp_ prefix (only when they had no prefix). This was required because WP does not support installations without a table prefix. It looks like something wrong with that migration in your installation.
Do you have a backup from package v2.21.3 ? If so, if you can revert to that and contact me on support@cloudron.io, I can take a look why the migration is failing.