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 ('044f906c756dcdea5aac7d3629542ed6','0','3.146.105.137','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714990753','board.php?boardid=235&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=40bc6e47cf2691103c2577c3eace47ea','0','0','')
mysql error: Duplicate entry '044f906c756dcdea5aac7d3629542ed6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 12:19
Script: /board.php?boardid=235&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=40bc6e47cf2691103c2577c3eace47ea
Referer: