Greetings. I completely do not understand what you have done with the program. The program is automatically updated from the itch.io client. You do not need to download a completely new program again. You don't need to copy the safes anywhere. What I have described is NOT an INSTRUCTION to update. This is the instruction if you completely break the program.
Where did you keep the map files?
Sorry I haven't answered for 2 days, I didn't have access to the Internet.