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 ('cb03e8de69a06e400f6c61a98f0cd260','0','3.142.255.5','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716256727','thread.php?threadid=5207&page=1&sid=25543e1384b0772919b711984ee7980c','0','0','')
mysql error: Duplicate entry 'cb03e8de69a06e400f6c61a98f0cd260' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 21.05.2024 @ 03:58
Script: /thread.php?threadid=5207&page=1&sid=25543e1384b0772919b711984ee7980c
Referer: