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 ('5bd20287a65c9e05a0555755c76baa72','0','3.133.159.198','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715779728','addreply.php?postid=77374&sid=0eadd4a3a8a55c4f11b74bcd652e9573','0','0','')
mysql error: Duplicate entry '5bd20287a65c9e05a0555755c76baa72' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 15.05.2024 @ 15:28
Script: /addreply.php?postid=77374&sid=0eadd4a3a8a55c4f11b74bcd652e9573
Referer: