Survival 1.0 Java Error when doing /warp Walgreens in Survival

I don't know if this happens to everyone when they do /warp Walgreens in survival and I don't recommend you try it. I did /warp walgreens to see if it was a shop and i got this error: http://prntscr.com/870ai0. Now everytime i try to join survival i get the same message If a mod can help me with this issue it would be great Thanks.

 

This has been fixed. Try to log in now.

 

Thank You so much

 

This has been dealt with and issue resolved. Locking thread.