[Help] Castles

Hey everyone, i got a problem with castles,
When i click on UPGRADE for the building
nothing happens and cant move and when i click on Go to, ( as go to the building) also nothing happens
If anyone could help me, would be cool :)

you can try comparing a db with working castle system to yours, find the problem its the best way so you understand the problem for future reference, off to wrk when i get back if you havent fixed the problem ill be glad to help