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 ('98c3380ec98358411f0f4f746892da5a','0','18.118.144.50','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1737795570','ct_mail.php?Page=568658467','0','0','')
mysql error: Duplicate entry '98c3380ec98358411f0f4f746892da5a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.33-0ubuntu0.16.04.1
php version: 5.6.40
Date: 25.01.2025 @ 09:59
Script: /ct_mail.php?Page=568658467
Referer: