I am stuck , I can't login into my WP dashboard

I had a problem in my site so the support of hostgator adviced me to restore my site because I have already backup and when they did that I find my site redirected to another domain of my domains so I told them they restored the wrong backup but nobody listen to me now I am stuck I can't even login to my WP dashboard and my users are over 40000 users

I will finish this month with Hostgator to return my users and find a good company better, and yes I will create my site from scratch all I need now my WP users they are over 40000 users I don want to loose them . Maybe when I login I can export my users.

My site is https://yourteaching.com

This is my .htaccess

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [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).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]

# END WordPress