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 ('5fc6b15722a2509ffe90ef8cbc442fe4','0','18.116.238.69','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717404804','forgotpw.php?sid=f1c19e1d6489fa5da4e7d748305d1ae8','0','0','')
mysql error: Duplicate entry '5fc6b15722a2509ffe90ef8cbc442fe4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 03.06.2024 @ 10:53
Script: /forgotpw.php?sid=f1c19e1d6489fa5da4e7d748305d1ae8
Referer: