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 ('8c57bcb4e789b9c93792efb380c6c1f0','0','3.144.1.156','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715467497','thread.php?goto=lastpost&threadid=1566&sid=8ba19186415040e3e2098ff6e97f8d0f','0','0','')
mysql error: Duplicate entry '8c57bcb4e789b9c93792efb380c6c1f0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 00:44
Script: /thread.php?goto=lastpost&threadid=1566&sid=8ba19186415040e3e2098ff6e97f8d0f
Referer: