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 ('0862ff647275968ca526ce5958650ce0','0','3.22.51.241','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714477103','board.php?boardid=88&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=860ef7adffa506a374e74596f34e29aa','0','0','')
mysql error: Duplicate entry '0862ff647275968ca526ce5958650ce0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 30.04.2024 @ 13:38
Script: /board.php?boardid=88&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=860ef7adffa506a374e74596f34e29aa
Referer: