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 ('b423feb41725d263515482001b5107c4','0','13.58.82.79','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713552407','board.php?boardid=300&sid=5beaf19037be45b89a41feb016ecdfdc','0','0','')
mysql error: Duplicate entry 'b423feb41725d263515482001b5107c4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 19.04.2024 @ 20:46
Script: /board.php?boardid=300&sid=5beaf19037be45b89a41feb016ecdfdc
Referer: http://wehrbauten.de/board.php?boardid=300&sid=5beaf19037be45b89a41feb016ecdfdc