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 ('42066d9d1c496235bfb685407b0dc9e0','0','18.116.40.53','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714948783','thread.php?goto=lastpost&threadid=8083&sid=c2ced92f19baec9f8a5efddc6f9e4547','0','0','')
mysql error: Duplicate entry '42066d9d1c496235bfb685407b0dc9e0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 06.05.2024 @ 00:39
Script: /thread.php?goto=lastpost&threadid=8083&sid=c2ced92f19baec9f8a5efddc6f9e4547
Referer: