I worked it out guys, so with theAssertion failed: Q.IsNormalized()
There is most likely an animation that is causing the crash, the best way to fix this is by validating all ur folders and if you get a crash with Assertion failed: Q.IsNormalized(), then you know there is an animation in that file that is causing the issue, try and open up each animation until it crashes, once you find the animation thats casuing the issue delete it, you may have to delete it from the file because if you just single click on it that seems to make the engine crash, repeat these steps until you can load your game up.
If you cant even get into your games engine then you have a bit more of an issue, you will have to go through the game files and copy the anaimtions put them into a new folder on your desktop for example, and then delete the animations from the project i would suggest deleted 10 animations at a time once you find whats causing the issue delete that anaimtion and then paste the ones you deleted back into the project, hopefully the game should load without a crash.