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 ('cf818b3a57de57c0ffee61f819b2ecbd','0','3.134.77.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715385072','thread.php?goto=nextoldest&threadid=981&sid=b03dd5e62a63f377693c413cfba7bfca','0','0','')
mysql error: Duplicate entry 'cf818b3a57de57c0ffee61f819b2ecbd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 01:51
Script: /thread.php?goto=nextoldest&threadid=981&sid=b03dd5e62a63f377693c413cfba7bfca
Referer: