SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('df70760c17d3f0456e5ade1348c5ca9f','0','216.73.216.63','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1750788000','thread.php?postid=35487','0','0','')
mysql error: Duplicate entry 'df70760c17d3f0456e5ade1348c5ca9f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 24.06.2025 @ 20:00
Script: /thread.php?postid=35487
Referer: