SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.1.3): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('983ffe59d3cbb56787e732f787dd9e54','0','216.73.216.71','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1752073218','thread.php?postid=236395','0','0','')
mysql error: Duplicate entry '983ffe59d3cbb56787e732f787dd9e54' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.11.11-MariaDB-0+deb12u1
php version: 5.6.40-81+ubuntu22.04.1+deb.sury.org+1
Date: 09.07.2025 @ 17:00
Script: /thread.php?postid=236395
Referer: