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 ('b68cec86faa41f2cd3871c919b33fe7d','0','3.145.101.192','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716399062','thread.php?threadid=7929&goto=lastpost&sid=38acba656756a5011a4970c773154326','0','0','')
mysql error: Duplicate entry 'b68cec86faa41f2cd3871c919b33fe7d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 22.05.2024 @ 19:31
Script: /thread.php?threadid=7929&goto=lastpost&sid=38acba656756a5011a4970c773154326
Referer: