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 ('59452bf7032a6feabff37aa7d66be4cc','0','3.137.218.230','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714741444','memberslist.php?sid=30a09996b0ad99d717a7a6d396b86c1d','0','0','')
mysql error: Duplicate entry '59452bf7032a6feabff37aa7d66be4cc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 03.05.2024 @ 15:04
Script: /memberslist.php?sid=30a09996b0ad99d717a7a6d396b86c1d
Referer: