Issue/26843: Fix es_US Spanish (United States ) Locale is not supported in Magento 2.3.4 #26843

Author: vincentle89

lib/internal/Magento/Framework/Locale/Config.php

@@ -108,6 +108,7 @@ class Config implements \Magento\Framework\Locale\ConfigInterface
         'es_VE', /*Spanish (Venezuela)*/
         'en_IE', /*English (Ireland)*/
         'es_BO', /*Spanish (Bolivia)*/
+        'es_US', /*Spanish (United States)*/
     ];
 
     /**