I believe the issue is that the game doesn’t create a field to store the time the server has been running when creating a new database.
Ratsuky from the admin discord found a workaround for the server age 0 issue, not sure if it will fix the decay timer too, I no longer admin so I can’t test it.
As always create backups before tweaking your game.db
You need to execute the following SQL statement, it will create the field and the game should be able to overwrite the values with the correct ones.
INSERT INTO dw_settings (name,value) VALUES (‘serverruntime’,‘3677564.48736522’);