Whenever I press E the game crashes

Put the summary of the bug you're having here
I was editing the minecraft 1.7.10 texture pack and put everything back in its folder then open minecraft went on a server then pressed "e" then my game keeps crashing
What I expected to happen was...:
For everything to work out fine

What actually happened was...:
My game keeps crashing

Steps to Reproduce:
1.Im editing the 1.7.10 texture pack
2. ...I move everything over and play minecraft
3. ... when i log on and press "e" my game crashes