@ssemenets appears as though you’re not allowing access to the default ajax functionality to process the inquiry as it’s throwing a 500 error (yourwebsite.com/wp-admin/admin-ajax.php). This is generally due to a security plugin. Once that is resolved you should be all set!
I just checked, looks like don’t have any security plugins?! Her is the list:
“Business Reviews
Coming Soon Page & Maintenance Mode by SeedProd
Select Easy WP SMTP
Google Analytics for WordPress by MonsterInsights
Jetpack by WordPress.com
MOJO Marketplace
Mortgage Calculators WP
ODM Reviews
OptinMonster API
Really Simple SSL
Responsive Mortgage Calculator
Starfish Reviews (Premium)
WP Rocket
WPForms Lite”
Well the next best thing to do is deactivate plugins one by one to see which is the culprit and if that doesn’t work then switch to the 2019 wp theme. If that still doesn’t work then there is something at your hosting level causing an issue and you can then submit a support inquiry through our site @ https://mortgagecalculatorsplugin.com/#support with your login credentials and we can have a further look.
I just submitted support inquiry through your website @ https://mortgagecalculatorsplugin.com/#support with my login credentials