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 ('a55e9ce348b8dc2911c3c704aa953615','0','3.145.62.131','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715770448','thread.php?threadid=238997&goto=lastpost&sid=4a673ac9bd936339ac1b120220ef1f0e','0','0','')
mysql error: Duplicate entry 'a55e9ce348b8dc2911c3c704aa953615' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 15.05.2024 @ 12:54
Script: /thread.php?threadid=238997&goto=lastpost&sid=4a673ac9bd936339ac1b120220ef1f0e
Referer: