SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl 2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('d28a8d1bf674de502a15f46bcf380017','0','3.144.84.155','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713952474','thread.php?threadid=69539&goto=lastpost&sid=9f4f63ddbba392310f77286223b35eb4','0','0','')
mysql error: Duplicate entry 'd28a8d1bf674de502a15f46bcf380017' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 24.04.2024 @ 11:54
Script: /thread.php?threadid=69539&goto=lastpost&sid=9f4f63ddbba392310f77286223b35eb4
Referer: