Game crashes as i enter cosmicpvp alien planet factions

Put the summary of the bug you're having here
Crashing my minecraft in factions
What I expected to happen was...:
Describe what you thought should happen here
To enter my faction base on alien planet cosmicpvp
What actually happened was...:
Describe what happened here
i started to walk and the game crashes after 5 seconds
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...go on alien planet factions cosmicpvp
3. ...then move mouse