Syntex Error

I had no problems yesterday with my site. Went off and had a great holiday came back this morning and when my page loads I get a Syntex error, as follows:

Line: 2
Char: 1
Error: Syntex Error
Code: 0
URL: http://joscafe.com

I have looked through my code and I had not changed a thing since yesterday, and actually what was changed yesterday was just adding a post.

Any ideas from all you smart folks? Thanks!