sorry for your trouble
I’m sure they’ve made many improvements in these locks over the years, but I still would not trust them for a high security safe.
This is all I can find for a do it yourself fix.
The locking mechanism of a safe can, under certain conditions, place pressure on the side of the lock’s bolt. This is often caused by something inside the safe pressing against the door or by something caught between the safe door and its frame. When this occurs, the lock will not operate properly. To relieve side pressure on the lock bolt, move the safe’s handle to the fully locked position, (for direct-drive locks make sure the keypad is turned counterclockwise to stop), then re- enter a working code. The lock should open.
I have had that happen once before. But that is not the problem I have now. I have an electronic safe. Electronic only. The electronics are dead as in D-E-A-D. It is internal and the manufacturer says drill it or rip it. They have the blueprints. They know their safes and from the videos they know their failure rate.