When, I try to check on the quizzes a member has made by typing it down in this kind of address.

http://www.funtrivia.com/quizlistgold.cfm?player=(anyone)

I always get the message "Database temporarily unavailable"

However this is not happening when I click on the name of an person. Can someone tell me what is happening ?

The "Database Temporarily Unavailable". It should work again soon. It must be only an error.