SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('13d2ba38c197c013499d6eb735c17b5b','0','216.73.216.8','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1751197572','thread.php?postid=25950','0','0','')
mysql error: Duplicate entry '13d2ba38c197c013499d6eb735c17b5b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 29.06.2025 @ 13:46
Script: /thread.php?postid=25950
Referer: