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 ('4f24522e6eeb165642dd6f6a5b350ebd','0','18.118.184.237','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713956564','board.php?boardid=528&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=36013185081f022074674760d28a5c6f','0','0','')
mysql error: Duplicate entry '4f24522e6eeb165642dd6f6a5b350ebd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 24.04.2024 @ 13:02
Script: /board.php?boardid=528&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=36013185081f022074674760d28a5c6f
Referer: http://wehrbauten.de/board.php?boardid=528&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=36013185081f022074674760d28a5c6f