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 ('2240d2061a8d7750ffe55fa47143cd88','0','18.189.186.214','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715810500','thread.php?goto=nextnewest&threadid=53&sid=e5772114f3237d1ef591a0f618fb06aa','0','0','')
mysql error: Duplicate entry '2240d2061a8d7750ffe55fa47143cd88' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 16.05.2024 @ 00:01
Script: /thread.php?goto=nextnewest&threadid=53&sid=e5772114f3237d1ef591a0f618fb06aa
Referer: