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 ('c329215058f872a9bfcb61cdf7285789','0','18.217.130.138','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715908237','calendar.php?sid=52ed5591ec5c7316baef7a7017a44973','0','0','')
mysql error: Duplicate entry 'c329215058f872a9bfcb61cdf7285789' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 17.05.2024 @ 03:10
Script: /calendar.php?sid=52ed5591ec5c7316baef7a7017a44973
Referer: http://www.karpfen-spezial.de/calendar.php?sid=52ed5591ec5c7316baef7a7017a44973