Installing Drupal

Hi, I am a noob so please excuse what may be very silly questions & I read all the documentation I could find.  I also looked for a Drupalvm specific forum but couldn't find one (no recent replies on the youtube vid).

My current plan is to use Drupalvm which "will install the following on an Ubuntu 18.04 (by default) linux VM" after I install Vagrant, Ansible, & download Drupalvm.

I have installed D9 via Softalicious on SiteGround

When I Admin/Configure/Basic site settings, I get an error in plain text

The website encountered an unexpected error. Please try again later.

Everything else seems OK

I’m attempting a fresh installation of Drupal 9. My web host has PHP 7.3, but I do not have MariaDB 10.3; therefore, my understanding is that I’ll have to use the provided driver. Except, I’m not understanding where in the directory I need to copy the extracted files. The path laid out in the driver’s page does not match the directory structure I’m seeing in my Drupal 9. This is the error message I am currently seeing before attempting any installation of the driver:

This page isn’t working

example.com is currently unable to handle this request.

HTTP ERROR 500

In the documentation for installing Drupal 7 - https://www.drupal.org/docs/7/install/step-1-download-and-extract-drupal - there is a bullet point: "using composer".

Clicking on that link takes one to this page: https://www.drupal.org/node/2718229. It tells you to use this command:

composer create-project drupal/recommended-project my_site_name_dir

Hello There,

I am trying to install a premium D8 theme whose developer does not give support anymore. I uploaded the demo theme files in Public-html. I exported the DB into PHPMyadmin. But when I go to settings.php file to add the db details, it does not show the theme at all. I have tried it several times. But I am not sure what mistake I am making. Could anyone please let me know what should I be doing to properly install the theme?

The address of the site is as follows.

https://aliyana31.sg-host.com/

I've been trying to upgrade a client's website to 9.0.0 for the last few days without success.

I typically follow the manual upgrade guide where you download the tarball, remove the old vendor/core folders and contents, copy the new vendor/core folders to take their place, and run /update.php but this breaks the site every time. I've updated all modules before updating, same result. I appreciate any and all help. This site is running on Ubuntu 18.04 VPS with OpenLiteSpeed.

We get this error on the homepage after installing the new files: