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 ('48e7feaf2efad435fcb331500436a299','0','18.219.7.146','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717554253','chartvote.php?=df2151f690e7d4cacb6b1eb54ad9ebdf','0','0','')
mysql error: Duplicate entry '48e7feaf2efad435fcb331500436a299' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 05.06.2024 @ 04:24
Script: /chartvote.php?=df2151f690e7d4cacb6b1eb54ad9ebdf
Referer: http://www.karpfen-spezial.de/chartvote.php?=df2151f690e7d4cacb6b1eb54ad9ebdf