Cheat Engine

I tried multiple thing with wpe pro, most of them result as a crash .

you probably try to change your euro/ap/bp amount.
those values are store online and when you changing is the visual number so when you try the "hacked" euro the game crash.
the easiest things to change is visual like name or lvl or euro(just visual) but you can change a lot of values like speed, ammo, life and etc.