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 ('bd0a6efe9c42f841d827e5418af4daac','0','3.144.202.167','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715034784','board.php?boardid=540&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=a54b781e9707ab69a72ef247a414a0f0','0','0','')
mysql error: Duplicate entry 'bd0a6efe9c42f841d827e5418af4daac' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 00:33
Script: /board.php?boardid=540&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=a54b781e9707ab69a72ef247a414a0f0
Referer: