Empty response in website

Community support
#1

I have uploaded my website on 000webhostapp.com. and it was working fine before. And I have not change a code of site. but
Now, when I submit a form, It is showing error page “ERR_EMPTY_RESPONSE”. I have not change a bit of code and I don’t know how this problem occur. Please help me.

#2

What is your website…?

#3

My website is wwph.000webhost.com
I got error while I submit form (Submit Entry) in contest page.

#4

Can you plz provide this page link? As i can’t find this page related link on your website.