MediaWiki is unable to load the extension UploadWizard. Please check that the extension's name is correct and all of its files are properly installed.
Details:
Error reading /var/www/html/extensions/UploadWizard/extension.json. filemtime(): stat failed for /var/www/html/extensions/UploadWizard/extension.json.
#0 /var/www/html/includes/GlobalFunctions.php(60): MediaWiki\Registration\ExtensionRegistry->queue('/var/www/html/e...')
#1 /var/www/html/LocalSettings.php(174): wfLoadExtension('UploadWizard')
#2 /var/www/html/includes/Setup.php(233): require_once('/var/www/html/L...')
#3 /var/www/html/includes/WebStart.php(86): require_once('/var/www/html/i...')
#4 /var/www/html/index.php(50): require('/var/www/html/i...')
#5 {main}