I log on to my favorite server and Boom minecraft crashes... Please help

Put the summary of the bug you're having here
Everytimei log onto pvp.saintscraft.com My minecraft crahes
What I expected to happen was...: It would let me play
Describe what you thought should happen here

What actually happened was...: MY MINECRAFT CRASHES
Describe what happened here MY MINECRAFT CRASHES

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
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