SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('48100524a3aeed973276e978d8566dd7','0','18.117.182.179','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713855525','register.php?sid=82081def34027426abd1c9019e4b7c75','0','0','')
mysql error: Duplicate entry '48100524a3aeed973276e978d8566dd7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0+deb9u2
php version: 5.2.6
Date: 23.04.2024 @ 08:58
Script: /register.php?sid=82081def34027426abd1c9019e4b7c75
Referer: