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 ('efd096ca13f5c91daa519a78584a040b','0','18.118.99.7','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715231680','thread.php?threadid=2051&sid=bb4f4074bcef69a8bff809379baf3d1c','0','0','')
mysql error: Duplicate entry 'efd096ca13f5c91daa519a78584a040b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 07:14
Script: /thread.php?threadid=2051&sid=bb4f4074bcef69a8bff809379baf3d1c
Referer: http://wehrbauten.de/thread.php?threadid=2051&sid=bb4f4074bcef69a8bff809379baf3d1c