Domain search not working

Dear WordPress support team,

Hope all are doing well.

I have been directed by the theme provider [email protected] since I have recently purchased a theme which runs Whmcs-bridge. All the modules are working fine except the domain search is not working.

Please assist to fix the problem

The message displayed is “Checking availability”.
I can’t move to the next step since the “continue” button can’t be clicked.

Kind Regards,

Olafsson

The page I need help with: [log in to see the link]