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 ('fc30228c495c0732cb95d73102aa2193','0','18.223.151.158','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715212366','board.php?boardid=94&sid=8adf38f1bdabca8adde37256624ab29d','0','0','')
mysql error: Duplicate entry 'fc30228c495c0732cb95d73102aa2193' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 01:52
Script: /board.php?boardid=94&sid=8adf38f1bdabca8adde37256624ab29d
Referer: http://wehrbauten.de/board.php?boardid=94&sid=8adf38f1bdabca8adde37256624ab29d