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 ('8ccf8789332f545311a16b92abe0ea5a','0','18.191.33.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715816511','thread.php?goto=lastpost&threadid=567&sid=06138bd1e19d3e236ef19e3cb2f3c986','0','0','')
mysql error: Duplicate entry '8ccf8789332f545311a16b92abe0ea5a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 01:41
Script: /thread.php?goto=lastpost&threadid=567&sid=06138bd1e19d3e236ef19e3cb2f3c986
Referer: