PVZGW2 won't work!

after a time ago I modified my game. just to the skins I try playing it error dump appear! nut i try again ANOTHER ONE appear! I deleted my frosty moder thing and try again. BUT YET AGAIN another APPEARED! and did some other stuff but it does not work! and till dis day! STILL DOSNT WORK STILL! EVEN THE UN DATED DUMPING STUFF BEING DELELET DOSE NOT WORK!!!!!!!!!!!!!!!!! someone any one help....