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 ('3dcb23ebe7d87790d6a461a7b273f47e','0','18.119.157.39','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715655713','usercp.php?action=buddy&add=344&sid=9cfe6e78c4aca9eef619749fd978a99c','0','0','')
mysql error: Duplicate entry '3dcb23ebe7d87790d6a461a7b273f47e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 05:01
Script: /usercp.php?action=buddy&add=344&sid=9cfe6e78c4aca9eef619749fd978a99c
Referer: