New DNS on a multisite install

Is it possible that my .htaccess file got screwed up along the way when we pointed the new DNS ?

It seem all that was written in it relating to the network has disappear, all I got now in the .hta file is :

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

instead of
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]

# uploaded files
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ – [L]
RewriteRule ^[_0-9a-zA-Z-]+/(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^[_0-9a-zA-Z-]+/(.*\.php)$ $1 [L]
RewriteRule . index.php [L]

I have done what you want done with [moderated] It should be straight forward. Also, no it is not weird that you can go through either domain with the folder after the domain name and see the same site. This is normal, and even wanted by some.
IMO, your problem is purely a dns and site management problem and a bluehost hosting support problem.

First I take it that you made an A record on your DNS to point to the same IPA of the existing site.
In this case, you would install your WP as having the URL of https://www.mylenepaquette.com/mylene. Access it as https://www.mylenepaquette.com/mylene and you should see the site.
You probably will need to setup a redirect so any traffic going directly to https://www.mylenepaquette.com is redirected to https://www.mylenepaquette.com/mylene.
Yes, your site would always be https://www.mylenepaquette.com/mylene and not https://www.mylenepaquette.com.
That is all.

As you found out, you should also be able to see it to some partial working order at https://www.juliecloutier.com/mylene. This does not really matter. The only reason it is partial, is because of the way WP works, and not the hosting.

By the way, whenever I want to install any CMS, like WP, onto a existing or production site, I always do a Full-Backup first. Just in case. [moderated]

@u201303 – per the forum guidelines, please refrain from promoting/discussing hosting service on these forums.

In fact the solution was to go in the database itself and change all occurences of https://www.juliecloutier.com/mylene by https://www.mylenepaquette.com So in the process I learned the basic skill for working with PHP my admin.
Thank you for trying to help and sorry for mentioning host.

I thought you said your hosting provider BH, already did that, and failed.
Okay, so your hosting provider did not do it correctly then.
Good, you found it.
Although, it is not really BH’s responsibility to do it anyways, as most know.

If WP original got installed to the correct address, then you would have not needed to consume all that time and effort.

Unfortunately, unlike other CMSs, WP is extremely picky about the URL it works with. With other CMS you can just have various domain names, subdomains, URLs all directed to the same site, and they work fine, and without having to make any URL changes in the DB or through the control panels. That’s why, when possible, I try to have it installed to the URL intended for use.

In addition, I think you should have been able to accomplish the same thing through the WP control panel for the WP settings. Ya, I know what you mean, I also use the PHPmyAdmin control panel through the WHW1 hosting control panel as a secondary measure. Just as you used it through BH’s hosting control panel. People think it is part of the hosting control panel. It is not. It is provided through the hosting control panel and not part of it, and is really an open source software started a long, long time ago. phpMyAdmin is a cool interface for database management. Awesome tool. Glad you got exposed to it. Now that you have used it, I suspect you will use it more often. Next play with the download feature of it, and search, and that will speed up your locating of such things like URLs or other words or phrases, or numbers.
If you have never tried to manipulate your DBs without such a helpful DB management software, then you do not know how extremely lucky you are that all these tools are easily available for data maintenance/management and they work so well, and are easy.

update:
Just saw a typo on my above post. Meant to say, “If WP originally got installed…..”