SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('f9bea47a5a9196b26968affbb75cebb7','0','3.12.73.64','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715573127','board.php?boardid=739&sid=142dfdb3cb2bb5999c9195a04a16c1d9','0','0','')
mysql error: Duplicate entry 'f9bea47a5a9196b26968affbb75cebb7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 06:05
Script: /board.php?boardid=739&sid=142dfdb3cb2bb5999c9195a04a16c1d9
Referer: http://wehrbauten.de/board.php?boardid=739&sid=142dfdb3cb2bb5999c9195a04a16c1d9