How Can I Fix An ID Conflict?

[Eziair]

The game has been playing fine since the 1.0.9c Update.

 

Was playing yesterday with no probs, but today when I try and log in (8 times now) all I get is this.....

 

 

 

 

 

How do I fix it?

I'm not much of a tech-head so easy steps plz

 

EDIT - Ok, I should of done this before leaving this post. I saved my world/Mapwriter and Textures and just delete the B-Team folder and did a new download. This fixed it.

 

If I had a brain cell it would be lonely.............

Edited March 11, 2014 by Eziair