SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('a4fdfc35c239689b5d7f6ab2df304c14','0','3.133.12.172','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715556857','jgs_db.php?sid=cbd5cb7faebc6508a416aac30f6fc7a4','0','0','')
mysql error: Duplicate entry 'a4fdfc35c239689b5d7f6ab2df304c14' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 13.05.2024 @ 01:34
Script: /jgs_db.php?sid=cbd5cb7faebc6508a416aac30f6fc7a4
Referer: