Forms are not found

Today we have changed from bronze to silver our jotform.

Now I have the problem that clicking preview tells me that the forms are not found.

In others I am trying to make modifications and do not appear later in the preview ...

I have checked your account and see that it is holding Silver subscription plan and good in standing. As I check the form URL provided, I see that the form is loading properly.

We were experiencing some delay with the EU data center that is causing the issue with the previewing the form and this should be resolved very soon. I have cleared the form caches as well. Could you check once again after sometime and let us know if the issue still persists? We will be happy to assist you further.