SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('8adad7444d2a8411b48c185e779a9734','0','3.145.158.137','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745294297','formmail.php?threadid=1157','0','0','')
mysql error: Duplicate entry '8adad7444d2a8411b48c185e779a9734' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.04.2025 @ 05:58
Script: /formmail.php?threadid=1157
Referer: http://gttempel.de/formmail.php?threadid=1157