MisterManu

It could be anything, maybe you didn’t uninstall wordpress correctly and now there’s a conflict with files.
The best would be to contact your host and see what’s the problem they may be able to help you.

Sorry for not being of much help

So toppremiumproductgroup.com is already on your server parked as an add-on domain?
If so then you should be able to add a subdomain or subfolder (whichever you use) in your wordpress network admin. Add that subfolder/domain and use the plugin Ipstenu gave you: http://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/ With that plugin you should be able to redirect that subdomain/subfolder towards toppremiumproductgroup.com. Then you can just configure it the way you want with a theme.

Bellow this comment box says:

Did you include a link to your site, so that others can see the problem?

That would be helpful to visualize your problem and us to help you… if something is overlapping something else try to clear your floats…

There’s something you’ve done wrong.

First, the add-on domain is not connected to wordpress in anyway.Which is why you’re having a problem.

I’m going to assume that your WordPress Multisite installation is correct and working. What you need to do is create a subdomain called whatever you want but it’s gonna look like subdomain.mhdassoc.com (if that’s the main domain associated with your multisite installation). You create that subdomain from your wordpress backend, not your cpanel in your host. Then you install multiple domain mapping plugin, you should be able to make subdomain.mhdassoc.com look like http://www.toppremiumproductsgroup.com since you have that domain on your host.
On a side note, whenever you want to have subdomains, you need to go to your server and have a wildcard activated, for that you just need to go into your cpanel of your webhost and click where it says add subdomain and write * and then it will add *.mhdassoc.com that way your subdomains will work.

I hope this will solve your problem. Let me know

I think your website “disappeared” because your loop wasn’t done in the right place…
Just in case, in the future if you have comments about your code that doesn’t work, please include your own.

it is simple once you make it work once. Then you’ll say “makes sense”
As far as the excerpt, I don’t know what esmi is talking about but there’s a function you could add to control the length of the excerpt. Just add the following code in your functions.php (remember to always make a copy of the file you are gonna change, just in case):

/****limit excerpt to first 15 words*****/
function custom_excerpt_length( $length ) {
	return 15;
}
add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );

Add the code bellow to your functions.php file, Anywhere but not between other code in case you mess things up. You can put it all the way at the end of functions.php.
Make a copy of it and save it somewhere before adding the code just in case.
What it will do for your is basically add the menus section in your wordpress backend. That should help you redo the menu naviguation.

/****************************************************/
/* Menus*/
/****************************************************/
function register_my_menus() {
  register_nav_menus(
    array( 'header-menu' => __( 'Header Menu' ) )

  );
}
add_action( 'init', 'register_my_menus' );

I was gonna suggest copy pasting your whole folder including the wordpress install and then grabbing your database and save it to then import it into your new host.
This is one of two methods, the other one is to export all your post and pictures from the wordpress backend , do a clean install of wordpress on your new server, add your template, re-import your post and you should be done. I don’t know if you’ll need to import your database as well but you might…Sorry if it’s not of any help…If you have tuts+ premium they have an ebook talking about moving wordpress and they go into details over those two methods…