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My bad, I gave you the wrong code. Try it now.
RewriteEngine on
RewriteRule ^(.*)$ http://www.yogastella.org/$1 [L,R=301]

This should work:
RewriteEngine on
RewriteRule ^(.*)$ http://www.yogastella.org/$1 [L,R=301]
Replace the entire content.

You just need to setup the domain in order to redirect the users to the new address. Also, depending on the service you are moving to, you could also make the DNS point directly to your new server....

Which option have you bought? The DNS settings are not available with the first one.

You can use that only if you bought a domain with us.
However the best way to setup a redirect is to use a .htaccess file, if you search a bit you'll find a lot of examples.