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 ('280a999afc76ac418ea3262dd2f8e5b2','0','18.117.216.36','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714728326','board.php?boardid=72&sid=0015dec77710baf2988ff50b4396aa72','0','0','')
mysql error: Duplicate entry '280a999afc76ac418ea3262dd2f8e5b2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 11:25
Script: /board.php?boardid=72&sid=0015dec77710baf2988ff50b4396aa72
Referer: