Drupal 8.x

Hello, 

Maintenance mode is on but my site is live. 

I can see home and login pages just fine. Rest of the pages are not live. 

Why do I see the home and login pages when maintenance mode is on?

Thanks!

We are looking to hire a developer to assist in a Drupal 8 project that involves taking Excel spreadsheets of data and importing/uploading it into Drupal 8 to create entities. There are several sheets and they all have different formats/layouts/headers/etc. Samples can be provided.

We already have this working using Feeds Import, but we believe a custom module may be necessary to manipulate more complex spreadsheets before Drupal can process it and this is where we need assistance.

How do I create a form like the one below on the rest webform ?

I created a module and through the controller I download the nodes I need.
In the controller I also entered the code to display the movements on the web page.
The problem is that once the file is downLoaded, it does not show me the web page, which it does if I do not execute the downLoad code.
Is it possible to make the 2 things coexist?

I have a custom form with managed_file field for video upload in my custom drupal 8 module. Once video uploaded, it is accessible to everyone. I want to restrict video access to logged in users or specific user roles. I tried "Private Files Download Permission" module but it always says forbidden for everyone. I have setup private file system path and files are being uploaded on private directory but not accessible over browser. My custom form field code is: