Why is my form crashing when submitted

Hi, my "Penn Hillel Fellowships" form looks great, but when I submit an entry, I get a "submit.jotform.us refused to connect" site pull up. How do I fix, or is it something on the back end? Thanks!

This seems to be a duplicate thread.

Kindly follow this link https://www.jotform.com/answers/1563760 as we will answer your inquiry at that thread.

Thank you.