Computer analysis glitch

In this game after the move 14.0-0 the engine seems to have glitched: http://de.lichess.org/JLVvjDnI
Note that it does not look like it but this was a 960 game.
My opponent offered a draw with basically every move maybe that has something to do with it?
Someone knows what the problem is here?

It should definetly be + evaluation, why it says - I can't answer.

Yes, it does not look like 960 -but it is :P