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 ('dc1383a52a2a3888a1fe644f516295d7','0','216.73.216.216','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1760218935','ct_mail.php?Page=511625777','0','0','')
mysql error: Duplicate entry 'dc1383a52a2a3888a1fe644f516295d7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.33-0ubuntu0.16.04.1
php version: 5.6.40
Date: 11.10.2025 @ 23:42
Script: /ct_mail.php?Page=511625777
Referer: