Hello Paul,
I am sorry for the late reply.
I have done some debugging in your site and I suspected that your webserver enable some of the
bandwidth throttle configuration to prevent multiple request/ajax request at the same URL. I tried to access your site ftp but it seems like the authentication was invalid. It giving me this error:
Response: 530 Login authentication failed
Error: Critical error
Error: Could not connect to server
Can you provide us with the correct authentication to your site ftp so that we can continue debugging this issue and soon fixing this issue. I am very sorry for the late reply.
Please be advise.
Thanks.