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 ('4fc2855caaa0d4654be809c92f5c952b','0','3.136.17.105','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715778108','thread.php?goto=lastpost&threadid=797&sid=53cf86d601e118f56a7ea3690785b141','0','0','')
mysql error: Duplicate entry '4fc2855caaa0d4654be809c92f5c952b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 15:01
Script: /thread.php?goto=lastpost&threadid=797&sid=53cf86d601e118f56a7ea3690785b141
Referer: