When I open the old database(2006), the system prompts about adding the enhanced techfilter and upgrading to 6.4; Upon upgrading, I get the following message;

After clicking OK and then closing and reopening the updated database, I get the following message;

When I click OK in the above message, then I get the following message;

After clicking OK, the system hangs, the cursor remains in the search mode (rotating icon)!