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 ('72dba33c423da199649dd2184e692abe','0','18.219.67.169','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716256323','register.php?sid=029b638105ea34c93e844b3ca4afca67','0','0','')
mysql error: Duplicate entry '72dba33c423da199649dd2184e692abe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 21.05.2024 @ 03:52
Script: /register.php?sid=029b638105ea34c93e844b3ca4afca67
Referer: