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 ('2be64f878bf243d88b88ede6d9c1883c','0','18.222.164.246','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716392461','thread.php?goto=lastpost&threadid=7924&sid=8a3e37079ce9b1974e514d0ecd37c559','0','0','')
mysql error: Duplicate entry '2be64f878bf243d88b88ede6d9c1883c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 22.05.2024 @ 17:41
Script: /thread.php?goto=lastpost&threadid=7924&sid=8a3e37079ce9b1974e514d0ecd37c559
Referer: