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 ('2326aa4d6805eafcf2005621a9318ac8','0','18.119.11.28','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715371272','thread.php?threadid=2216&goto=lastpost&sid=8349204b6e1bf25842ea9ac1fc2d889b','0','0','')
mysql error: Duplicate entry '2326aa4d6805eafcf2005621a9318ac8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 22:01
Script: /thread.php?threadid=2216&goto=lastpost&sid=8349204b6e1bf25842ea9ac1fc2d889b
Referer: http://wehrbauten.de/thread.php?threadid=2216&goto=lastpost&sid=8349204b6e1bf25842ea9ac1fc2d889b