Just joined this but I can tell you the answer you are looking for. Now I used mrantifun program for RP and now can't anymore after update like you. Here is the answer the new update either did one of two things; They changed the route where data is stored or the put up wall to block the program. Easy fix but im not messing with Mrantifun softwear i let him fix it.
I've tried every trainer thats available from him. Also i dont have a legal copy of dark souls 2 from steam or anything. It was from piratebay, dlc repack by MAXAGENT. He stated in his help thread that it might not work on different versions of the game so im wondering if my problem is with the one i downloaded from piratebay. Anyone else?