I can not log as admin or user

[metallica48423]

You said prior that your board has 3200 members.  I see only 413 in the database your forum is connecting to -- however there is another database that has around that number of members.

The forum is connecting to a database within vivid20_vivid15
But the database with that number of members is vivid20_vivid002 -- which has a database vivid20_sudanese (the database containing 3,166 members)

Can you go more in depth with what happened beofre and around this happening?

The vivid2_vivid15 database seems to be severely corrupted.   I did a sql query that replaced all the board names (all but one was null) so that I could go into the boards, but then discovered the same problem had come to both a large quantity of the topics and nearly all the posts. 

I'm really stumped -- but why is there two databases?