We are sorry we were not able to help you in time. In fact our entire support service has been missing for the last 30 days due to company issues. For a very short period we’ve left without any staff to handle requests and it took us some time to resolve this problem. We’ve now managed to restore our service and support will be provided with the normal rate.
About your problem – unfortunately it does not seem to be theme related. We’ve switched to the default theme and some of your other installed themes and every time the filter page appears blank. Strangely the error log does not list any server errors.