Crashes on any "Loading" Page.

Everything works untill i click any world, Multiplayer or single player, Then after i click the > (Start) It says "loading" and for single player i cant do any sort of exiting unless i reset my computer and i cant right click the app and click "Close application" but for Multiplayer it crashes if i click anything at all. I tried on a non hacked version (Im using IMPACT on singleplayer. I dont hack online) And it worked FINE. It was working yesterday untill i downloaded the new version of the hack (4.6) So ill try to remove 4.6 then see if it works. If it does not work i would like assistance. (Also im not a grown up im a kid. (10+)