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 ('19bf172da051276cee137af98c73275a','0','18.217.182.45','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715169960','board.php?boardid=230&sid=187f273d69e0ef753f722dced9c79765','0','0','')
mysql error: Duplicate entry '19bf172da051276cee137af98c73275a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 14:06
Script: /board.php?boardid=230&sid=187f273d69e0ef753f722dced9c79765
Referer: http://wehrbauten.de/board.php?boardid=230&sid=187f273d69e0ef753f722dced9c79765