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 ('8b473ae23f06acc7d8ae98125533bc67','0','216.73.216.171','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1761492902','ct_mail.php?Page=197917205','0','0','')
mysql error: Duplicate entry '8b473ae23f06acc7d8ae98125533bc67' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 26.10.2025 @ 16:35
Script: /ct_mail.php?Page=197917205
Referer: