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 ('3481999f1ac50c89ec37c101c4df5580','0','3.149.246.153','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715964455','board.php?boardid=96&page=1&daysprune=1000&sortfield=starter&sortorder=DESC','0','0','')
mysql error: Duplicate entry '3481999f1ac50c89ec37c101c4df5580' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 17.05.2024 @ 18:47
Script: /board.php?boardid=96&page=1&daysprune=1000&sortfield=starter&sortorder=DESC
Referer: