Site not responding...

David,

When a prospect submit a support request and click 'Submit Request', nothing happens. It just hangs.
Please see screenshot.
https://www.dropbox.com/s/tnn0w7vxaheyz5y/2020-10-28_13-35-09.png?dl=0
Hope you can advice?
Thanks
Richard
P.S Can I pay someone to check my site?