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 ('d3dffaeabc3237d4810bd7c96a5e7e6c','0','3.17.204.7','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715588058','thread.php?threadid=2005&goto=lastpost&sid=6a12c98c885496262d12e9aaa1e43c03','0','0','')
mysql error: Duplicate entry 'd3dffaeabc3237d4810bd7c96a5e7e6c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 10:14
Script: /thread.php?threadid=2005&goto=lastpost&sid=6a12c98c885496262d12e9aaa1e43c03
Referer: