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 ('707b629538827393e21cfd4c10336df9','0','18.191.223.123','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715839029','search.php?sid=09515b0c15f8338f0a62618ca3cfead3','0','0','')
mysql error: Duplicate entry '707b629538827393e21cfd4c10336df9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 07:57
Script: /search.php?sid=09515b0c15f8338f0a62618ca3cfead3
Referer: