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 ('6c10a7d8180718a8c78c27f66917e96d','0','18.227.13.249','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715919961','index.php?sid=019d7f584e1c9ceea04044a98ba9173f','0','0','')
mysql error: Duplicate entry '6c10a7d8180718a8c78c27f66917e96d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.2.17
Date: 17.05.2024 @ 06:26
Script: /index.php?sid=019d7f584e1c9ceea04044a98ba9173f
Referer: