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 ('c2f3110e6852672c2e244250abf79121','0','3.137.217.134','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715891909','board.php?boardid=90&sid=e907e6b5074b6443c4361c27ddf384ff','0','0','')
mysql error: Duplicate entry 'c2f3110e6852672c2e244250abf79121' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 22:38
Script: /board.php?boardid=90&sid=e907e6b5074b6443c4361c27ddf384ff
Referer: