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 ('e6e4caa5ca56f657f978653a1588daaf','0','18.219.170.188','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715736417','board.php?boardid=91&sid=9346775a3a2a561992260fb7578ded0b','0','0','')
mysql error: Duplicate entry 'e6e4caa5ca56f657f978653a1588daaf' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 03:26
Script: /board.php?boardid=91&sid=9346775a3a2a561992260fb7578ded0b
Referer: