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 ('29b75bba35ca3e9133bd8eb28f32eb28','0','3.144.38.130','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715733603','thread.php?goto=lastpost&threadid=37&sid=798a7ac976131642d8e01fb95fd3820d','0','0','')
mysql error: Duplicate entry '29b75bba35ca3e9133bd8eb28f32eb28' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 15.05.2024 @ 02:40
Script: /thread.php?goto=lastpost&threadid=37&sid=798a7ac976131642d8e01fb95fd3820d
Referer: