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 ('1dc108b11933201cca5604cec4146018','0','3.137.171.121','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715139109','board.php?boardid=246&sid=f77f6c3f1d428547bc18439e570fca5b','0','0','')
mysql error: Duplicate entry '1dc108b11933201cca5604cec4146018' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 05:31
Script: /board.php?boardid=246&sid=f77f6c3f1d428547bc18439e570fca5b
Referer: http://wehrbauten.de/board.php?boardid=246&sid=f77f6c3f1d428547bc18439e570fca5b