SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('2ca4eff279bb37501c4058b0baa28ab2','0','13.59.108.225','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715834400','addreply.php?action=quote&postid=18781','0','0','')
mysql error: Duplicate entry '2ca4eff279bb37501c4058b0baa28ab2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 16.05.2024 @ 06:40
Script: /addreply.php?action=quote&postid=18781
Referer: