Yes the game doesn't even start if I don't have the config but from what I've read seems its more of a game issue than an actual emulator issue, only happens in version 1 of the game.
I was playing Crash Twinsanity and after I defeat Boiler Room boss the game crashes, not sure if its just me. I tried to avoid the crash but nothing works.
Tried out Tak 2 with Tak 1 config (correctly this time) and it works perfectly start to finish, you were right @kozarovv I just didn't know how to encrypt the config correctly before.
Actually it looks like they removed it because of licensing issues since THQ shut down, no idea about other classics but I'm sure all of them use a config so they work correctly otherwise they probably wouldn't have put them in the store beforehand.
I wanted to try Tak 2 (US) but when I go in a new game it crashes, looked for a config but didn't find anything and can't use PS2 Classics version since it was removed from the store, any help?