Installing Drupal

I have installed Drupal 8.8.1 successfully, but get an error when I try to use Configuration Sync. I'm a Drupal newbie and cannot understand how to solve this error:

CONFIGURATION SYNC DIRECTORY Not present Your sites/drupal-8-8-1cj.dd/settings.php file must define the $settings['config_sync_directory'] setting as a string containing the directory in which configuration files can be found.

I also have a second error, I do not know if they are related (it doesn't sound to me like they would be):

Hi All,

How can I enable any module if drupal site not working?

I think if its linux, we can use drush command.

But if we are using windows machine, what we can do for doing this?

Is there any option in db also from where we can add add something?

Any help!

Many thanks!

How we connect Drupal with Infusionsoft Platform?

I went through the standard composer installation steps for D8 outlined in the installation docs. I used drupal/recommended-project as the project template. The web UI portion of the installation went fine, but immediately after completing that, I get an error when visiting the root of my website that says:

Uncaught PHP Exception InvalidArgumentException: "Class "Drupal\\views\\Routing\\ViewPageController" does not exist."

Does anyone know why this is happening?

Both install drupal 8.8.1

But /vendor folders are differents:

1) composer create-project drupal/recommended-project:

/vendor: 4485 files, ~21 Mo

2) composer create-project drupal-composer/drupal-project:

/vendor: 12624 files, ~62 Mo

What does it change? What does it mean? Which one is the best and why?

A few days ago, I did a fresh install of Lightning.
I also installed a fresh Drupal 8.8.1, so I could compare.
On my Linux Manjaro desktop using Composer.
I'm a newb re:Drupal, but have been webmastering since '95 using everything from hand written HTML to boxed CMS programs similar to Drupal.

I guess my first question should be, is there a better forum to get help with Lightning?

First problem: I can't install new modules through the web interface:

under admin/reports/updates/install