[ERROR] InnoDB: Failed to find tablespace for table... (no replies)

hi,

We have a bacula server that uses mysql as its database.

Today we found that mysql was not starting. I tried a few fixes, but to no success.

[ERROR] InnoDB: Failed to find tablespace for table `mysql`.`server_cost` in the cache. Attempting to load the tablespace with space id 19
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.655755Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`engine_cost` in the cache. Attempting to load the tablespace with space id 20
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.656794Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`time_zone_leap_second` in the cache. Attempting to load the tablespace with space id 12
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.656981Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`time_zone_name` in the cache. Attempting to load the tablespace with space id 8
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.657169Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`time_zone` in the cache. Attempting to load the tablespace with space id 9
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.657373Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`time_zone_transition_type` in the cache. Attempting to load the tablespace with space id 11
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.657548Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`time_zone_transition` in the cache. Attempting to load the tablespace with space id 10
Mar 7 16:43:42 bacula mysqld[2813]: 2023-03-07T19:43:42.658366Z 0 [ERROR] InnoDB: Failed to find tablespace for table `mysql`.`servers` in the cache. Attempting to load the tablespace with space id 3

I tried innodb_force_recovery = 1, but it only started with 6.

What are the other alternatives?