Why I'm getting "Please wait" error message?

We learned of the "Please Wait" message on one of our forms at the end of our summer season and didn't have time to look into it/thought it was a fluke.  Then I tried using JotForm again this fall and was told by people that they had the same problem.  The one from the summer was for an intern application and this time it's my Zimbabwe Mission Trip application.  I have another form currently in use that I know is working.  Can you tell me why the Zimbabwe form isn't working?  

I just tested your Zimbabve mission trip form(http://www.jotformpro.com/form/62625463322957) and I didn't encounter any issues as you can see below:

Please check and let us know if the issue persists.

Thank you.