MediaWiki

googleAnalytics configuration error

MediaWiki is unable to load the extension googleAnalytics. Please check that the extension's name is correct and all of its files are properly installed.

Details:
Error reading /var/www/wiki/public_html/extensions/googleAnalytics/extension.json. filemtime(): stat failed for /var/www/wiki/public_html/extensions/googleAnalytics/extension.json.

#0 /var/www/wiki/public_html/includes/GlobalFunctions.php(54): ExtensionRegistry->queue()
#1 /var/www/wiki/public_html/LocalSettings.php(242): wfLoadExtension()
#2 /var/www/wiki/public_html/includes/Setup.php(212): require_once('...')
#3 /var/www/wiki/public_html/includes/WebStart.php(92): require_once('...')
#4 /var/www/wiki/public_html/index.php(44): require('...')
#5 {main}

Fatal error: Error Loading extension. Unable to open file /var/www/wiki/public_html/extensions/googleAnalytics/extension.json: filemtime(): stat failed for /var/www/wiki/public_html/extensions/googleAnalytics/extension.json in /var/www/wiki/public_html/includes/registration/MissingExtensionException.php on line 100