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 ('8fd27dc20896d4aebb2bafc6a095e075','0','3.147.73.35','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714241614','thread.php?goto=lastpost&threadid=3253&sid=63a7250f5c37a25627986609f52a9356','0','0','')
mysql error: Duplicate entry '8fd27dc20896d4aebb2bafc6a095e075' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0+deb9u2
php version: 5.2.6
Date: 27.04.2024 @ 20:13
Script: /thread.php?goto=lastpost&threadid=3253&sid=63a7250f5c37a25627986609f52a9356
Referer: