[Xenon]

hmm, seems like a problem with your DB.

which MySSQL version is running?
the problem is, id 13 is tried to be inserted twice, which is impossible, because the code has this:

PHP Code:

  $tmp=$DB_site->query_first("SELECT MAX(archivid) as maxid FROM archive");
  $archivid=$tmp[maxid]+1; 


which makes shure, that the inserting id does not exist before inserting..

try to delete the table archiv, and recreate it, maybe it could help