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 ('91e82d07e8824bb4da0a8e52c6d407ab','0','18.119.136.9','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715479462','board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=83abdd41ba2225e0f2967773be70d46f','0','0','')
mysql error: Duplicate entry '91e82d07e8824bb4da0a8e52c6d407ab' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 04:04
Script: /board.php?boardid=262&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=83abdd41ba2225e0f2967773be70d46f
Referer: