Drupal 8.x

I am new to Drupal and having some issues with the cogwheel button on all of content types when I want to manage their display. When I click the gear / cogwheel icon "please wait" message shows up for a second then then nothing happens, no options to change. I saw this log below (there is no Drupal log).

I tried it with both enabling / disabling JS Agreggation under Configuration > Development, no success!

Hello

I have just informed that the major newspaper and magazine national websites in Greece are made from Drupal! For example https://www.ethnos.gr/ or https://www.sdna.gr/. 

I have just start learning Drupal while im building websites with wordpress

I want to ask just a question. How can i freely design my regions on a web site in drupal where i would place my blocks like the websites i mentioned above? 

I have, say, 3 content types, I want to create a single page, node or view that holds the nodes from this content types.

So I have node A with 4 fields, B with 2 fields and C with 5 fields (A, B, C are of different content types) and I want to crerate a collection of this nodes on a single page such that we have the following:

===page start====

A title
A field_1
A field_2
A field_3
A field_4

<hr>
line break or page break

After upgrading to 8.9.5 last week I noticed a problem on my shared hosting site where I was intermittently locked out of admin.

Hi, I have created a small module to display an "Agree to Terms" link in the Drupal Commerce shopping tunnel.
This link displays the store's condition page.
I want to display the rendered store entity instead of the conditions page. How to do this ?
I created in my type of store, a display named "Terms and conditions". I want to make this display in a modal window when the user clicks on the link.

Here is my code :

https://git.drupalcode.org/sandbox/zenimagine-3082137

Hi,

Drupal 8 Commerce 2.x Commerce Checkout Progress the block is created but the configure page are not able to see in block.

i am using Drupal version 8.9.3 and commerce version 2.20 PHP version 7.2.29

in block configure page i am not able to see the pages which i can enable the page for checkout progress.

In the block setting page (admin/structure/block/manage/commerce_checkout_progress/indication/configure), it can be configured to show this block only in some checkout pages. 

not able to see the indication configure page