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 ('83809fbe43f1c87ebbbf2d98bd3fefae','0','18.217.144.32','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714853468','jgs_portal_links.php?action=suche2_starten&buchstabe=A&sid=93531009ee285e18bb05e43ba0c83505','0','0','')
mysql error: Duplicate entry '83809fbe43f1c87ebbbf2d98bd3fefae' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.33-0ubuntu0.16.04.1
php version: 5.6.40
Date: 04.05.2024 @ 22:11
Script: /jgs_portal_links.php?action=suche2_starten&buchstabe=A&sid=93531009ee285e18bb05e43ba0c83505
Referer: