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 ('9bfc7157544c734b0f9db7f9308f0ccf','0','18.117.227.194','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715227003','board.php?boardid=188&sid=8b9b94c4571718412ff96a2410c2d274','0','0','')
mysql error: Duplicate entry '9bfc7157544c734b0f9db7f9308f0ccf' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 05:56
Script: /board.php?boardid=188&sid=8b9b94c4571718412ff96a2410c2d274
Referer: http://wehrbauten.de/board.php?boardid=188&sid=8b9b94c4571718412ff96a2410c2d274