Drupal 8.x

I was updating a site using composer like I always do. It seemed to be fine but the site still shows running 8.9.11. I checked the status page as well as drush status, both show 8.9.11. I did run 'drush updatedb' and 'drush cr'.

My composer.json is showing:

I need to update my robots.txt file for the first time.  I plan to create an append file that I will arbitrarily name: my-robots-additions.txt.  This file will append its contents to robots.txt at: mysite.com > web > robots.txt

I'm using composer to manage my site so I reviewed the documentation here regarding appending to a scaffold file:

https://www.drupal.org/docs/develop/using-composer/using-drupals-compose...

When I try to add modules and themes, my FTP connection break. 

 I'm trying to add a module to the site and need to authorize, when I write all the needed information, after time the site responds to the text:

"The application did not respond in time."

The project is on pantheon.io

already tried to clear the cache, not working.

any clue how to fix the problem

I am using drupal 8.9.10
I have a content type with several text field, and a file field too.

My problem is: 
- I have to call an external web service. 
- This web service receives a file and returns it with a verification code.
- I have to add this file to the file field
 and finally save all the content

I am a beginner in drupal, I have been looking at tutorial to create custom modules and I don't know how to develope this. 

I don't know if it is necessary to create a module or create a custom field

I run my farm page on Drupal.  I was using Drupal 7, but I created a Drupal 8 replacement page, using composer to install.

I self host in a dedicated VM with a reverse proxy to manage multiple URL's on my static forward facing IP.

Now that I have updated my reverse proxy to point one of the URL's to the VM I am running the Drupal 8 page on, I need my pages to map to the URL as opposed to the IP.

When I login, the address changes from URL to IP and I get "not authorized to access".  I edit the address to put the URL in and it connects me...but...