Hi Danilo,
You deployed a 10.24.11 package somewhere that pointed to (or migrated) the same database ACCP uses.10.24 wrote newer migration metadata (“pre-analysis migrations”) into the DB.When you later started 10.12.16 on that DB, it refused to boot because Mendix doesn’t support DB downgrades. Solution:
Restore the database to a timestamp before the 10.24 deployment
Managed DB: do a point-in-time restore or restore snapshot.
Self-hosted PG: restore from backup dump.
Restore the file storage (object store / volume) to the same point in time.
Start the app again with 10.12.16 runtime & package.
Verify it boots and data looks consistent.
Just to make sure, you only have a accp and a production environment? Because indeed you can not downgrade your database. You already started an 10.24.11 and then tried to start 10.12.16. You need to restore the database first to the version before the 10.24.11 and then you can upload the 10.12.16 version.
Regards,
Ronald