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 ('40392f8eff63e60e042b3cb6e31b047c','0','216.73.216.235','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1749299349','thread.php?goto=nextoldest&threadid=773','0','0','')
mysql error: Duplicate entry '40392f8eff63e60e042b3cb6e31b047c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 07.06.2025 @ 14:29
Script: /thread.php?goto=nextoldest&threadid=773
Referer: