Can't input data into forms

Can't input data into forms

I was using ZohoCreator fine about two weeks ago to build out forms and views and start to add data. I came back last night and tried to add data in a form, and several times, when I hit submit, I get a "Please Wait" circle icon that never goes away. I cannot input data. It seems ot be an an issue with this particular form, as another form works. How can I troubleshoot the problem with this form?