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 ('96c7f0c463851a03266c06668cbfa968','0','18.222.68.81','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715663175','board.php?boardid=780&sid=37d298e4171c57f489661b468fb207df','0','0','')
mysql error: Duplicate entry '96c7f0c463851a03266c06668cbfa968' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 07:06
Script: /board.php?boardid=780&sid=37d298e4171c57f489661b468fb207df
Referer: