Drupal 8.x

Hello,

I have the MAYO theme installed am using a subMayo creation. According to the MAYO Theme write-up, it does everything that I want it to do. The problem I have is HOW? Is there an interface that I'm missing somewhere? Do I need to make all of my changes in the .css files? Is there a documentation file somewhere that actually has some information?

At this point, I just want to change the header image (keeping the logo.png image intact) and create a site-wide background image.

Any assistance would be greatly appreciated,

I'm running 8.8.2 (yes, I'll be upgrading soon), and I'm needing to run a small PHP snippet in a block to fetch the output of a command on my Linux web server. I would normally use exec(), but this function is not working in my version of Drupal. I really don't want to have to make my own plugin/module just for a simple code snippet. Any ideas on how I can do this simply and easily? 

Is there a module, other than the Webform, where we can change the Contact form's fields?

example:
Change Your Name to First and Last Name
Change Your Email to Email
Add Company Name
Add Phone#

I did search and couldn't find any solutions yet.

Also am surprised that the default form is not letting us change those fields.

Drupal 8. Multiple sites sharing a single codebase.  One .htaccess file for all.

I am receiving the same "page not found error" across all sites. 

For example, someone tries to visit https:domain1/wp-admin/admin-ajax.php and https:domain2/wp-admin/admin-ajax.php ... Different domain names, but always the same URL strings.

Other URL strings include /phpmyadmin/scripts/setup.php and /1/wp-includes/wlwmanifest.xml and so on.

I'm trying to port a D6 site to D8. It uses hidden profile fields to store information about what each user can do. I did the migration using the standard flow using the UI.

The table seems to have made it across in the migration as there is a table called user__profile_my_name in the database with all the values in. But this information is not visible in D8. I tried creating a field in D8 to serve the same purpose, but that created its own table called profile__field_profile_my_name, so that will not work.

I have come across a very odd issue. When on the landing page of my website the footer menu does not work. It shows that it is there yet the menu links are not clickable. 

However, when viewing the website on a mobile device OR when going to another page on my website on the desktop the menu DOES work. The only time it does not work is when you are on the landing page. Does anyone have any idea of what I can do to get the footer menu to work on the landing page?

I am using the ICE MAGIC theme for Drupal 8. Any and all help is appreciated. 

Thanks, 

Nick