Every time I join a server in 1.7.10 - 1.7.2 I get a crash

Put the summary of the bug you're having here

What I expected to happen was...:
join ther server like normal ( tested on all my 1.7.10 servers )

What actually happened was...:
CRASH

Steps to Reproduce:
1. Play a profile in minecraft 1.7.10 - 1.7.2
2. join any server compatible with the versions
3. Then get a crash