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 ('c4e5a2fe3b1c46f43e4c81328d3c12cd','0','18.220.160.216','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715240105','report.php?postid=84238&sid=697befbf3d76ec7c145617eb9000bc4d','0','0','')
mysql error: Duplicate entry 'c4e5a2fe3b1c46f43e4c81328d3c12cd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 09.05.2024 @ 09:35
Script: /report.php?postid=84238&sid=697befbf3d76ec7c145617eb9000bc4d
Referer: