Hello,
As I understood the only problem is contact form configuration.
1/ Make sure you have configured sending emails to your host. In order to check this just ad a default form, save and test it. If you have problems, contact your host.
2/ If the default form works well, check the configuration of your form:
– make sure the mail contains your domain in the second part http://prntscr.com/j0ngus
– http://prntscr.com/j0nhp3 check these tags and make sure they are placed in the fields as per default form.
Best Regards