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 ('c26281546d7251b2f07cac76321cffd6','0','3.143.205.2','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715581222','newthread.php?boardid=197&sid=42896c85d1df8176fb1bed75d90493ae','0','0','')
mysql error: Duplicate entry 'c26281546d7251b2f07cac76321cffd6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 08:20
Script: /newthread.php?boardid=197&sid=42896c85d1df8176fb1bed75d90493ae
Referer: