Upgrading Drupal

Hi,
I need to migrate d7 organic group to d8 group.
But I need to check if the d7 group was public or private for adding into different d8 group type.
Here is my yml file in my migration module
 

Hello,

My client currently has his Drupal 7.67 site on cPanel (Live site) and wants to migrate to Drupal 8.x on AWS Lightsail. Can someone please answer below concerns.

what would be the database host when i am trying to upgrade from drupal 7 to 8.

as per cpanel, host is registered as localhost:3036. but how to access the mySQL server ?

I'm the volunteer maintainer of the website of the Dutch origami community. Another person helps in putting content on the website. I built the current site in Drupal 7 and I am now in the process of migrating it to Drupal 8. I want to improve the way images are added and used on the current site and make it easier for other volunteers to step in and help maintain the content. 

I'm running into roadblocks getting things to work on the Drupal 8 site. I hope someone can give me some pointers on how to fix the problems.

The website has several types of images:

Upgraded our Drupal 7.6 site to D7.67 for security reasons. Afterwords, the site appears okay, but when I go to the Contents tab, all my old content is gone (does not show -- the pages can still be accessed via links)

The message at the top of the page:

I am trying to port a Drupal 7 theme to Drupal 8. I am in the process of changing the .info file to a .info.yml file, but am not sure what to do with some of the properties. 

My current .info.yml file looks like this (all I did was just convert the syntax). 

While updating Drupal via composer v1.9.1, I get the following error:

Updating drupal/core (8.7.8 => 8.7.10):     Update failed (Could not delete core: )
    Would you like to try reinstalling the package instead [yes]? y
  - Removing drupal/core (8.7.8)


  [RuntimeException]
  Could not delete core:

and when I navigate to my site, I get a 500 error.