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 ('7cf3f733d72a4ebc1a5a66d6b9592a41','0','18.117.103.219','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716546377','index.php?sid=ad72f43468eaf1301109470d183c0b09','0','0','e7272f5aea0aeadd96ddfcabd930f54e')
mysql error: Duplicate entry '7cf3f733d72a4ebc1a5a66d6b9592a41' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 24.05.2024 @ 12:26
Script: /board/index.php?sid=ad72f43468eaf1301109470d183c0b09
Referer: