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 ('7835439931dcd61c6ca7c53c7523a9d1','0','3.15.229.113','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714407420','profile.php?userid=54&sid=cb2da3ee42493c7494d2ee3c4a8e36c5','0','0','')
mysql error: Duplicate entry '7835439931dcd61c6ca7c53c7523a9d1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0+deb9u2
php version: 5.2.6
Date: 29.04.2024 @ 18:17
Script: /profile.php?userid=54&sid=cb2da3ee42493c7494d2ee3c4a8e36c5
Referer: