Error sending message. Your license is blocked

When I and sending a template test mail, then show out the error messages your license isblocked, what can I do?

I can't submit from a ticket form the following link:
https://www.acymailing.com/support/

always show the error The reCAPTCHA was invalid. Go back and try it again.

We can't help you regarding this issue in the forum

Please try to contact us using the following form

https://www.acymailing.com/contact/

If that also doesn't work, please try to use some other browser or even some other email address