Trying to play on a Pixelmon server. Have to go to 1.7.9 or it will tell me that I was kicked because of being in an "Outdated Server! I'm still on {0}."

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...