Watchguard problem

Hello guys.. i have a problem with my watchguard program and i want your help to fix this out.

So my problem is that the watchguard log database server is not working from the ends of 2008. The problem as I understand is that my database is corrupted so it can't work.

I make all the moves i found on the internet of watchguard to create new index table and new database. i try to delete the old database but i could not do that from some errors i get.
the errors are the followings :
1. could not connect to database wglog
2. could not open critical system index 2662

thanks for the help in advanced.