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 ('96ea9f608e1704489cd28c398a126c76','0','18.188.142.146','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715517176','thread.php?threadid=1366&sid=7beb89407153bf81052caa0f5ca8b735','0','0','')
mysql error: Duplicate entry '96ea9f608e1704489cd28c398a126c76' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 14:32
Script: /thread.php?threadid=1366&sid=7beb89407153bf81052caa0f5ca8b735
Referer: