Thats your problem then. What is the prefix set for in the config section? This is all that should matter. You can set this for the exact prefix you are using making sure they match and it should work.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.