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 ('3fd3104fab039dabe4d16b9e8a06934e','0','3.15.159.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715437867','editpost.php?postid=149674&sid=63d0a44eb6cbbead2dc351ed40b35da8','0','0','')
mysql error: Duplicate entry '3fd3104fab039dabe4d16b9e8a06934e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.16-MariaDB-0ubuntu0.22.04.1
php version: 5.6.40
Date: 11.05.2024 @ 16:31
Script: /editpost.php?postid=149674&sid=63d0a44eb6cbbead2dc351ed40b35da8
Referer: