email notifications…

Hi, i’ve been having some issues with my email notifications for purchased items. Im about a week from launching the site (https://www.autotodocr.com), i was making some tests, trying to buy some stuff to see if everything was working fine, however, my email notifications for a new purchase, are not beeing delivered. I have checked my junk mail, inbox, settings, etc and its no where to be found.
I donwloaded a plugin, “Check email” and this emails are been sent and delivered, but if I try to make a new order, they dont arrive to the same email…

Anybody had any issues like this in the past? A couple of weeks ago, everything was working fine, i already updated everything in my dashboard and still getting the same error. HELP PLEASE!