Error occured please contact application owner

Error occured please contact application owner

Hi Zoho,

When I submit request to my form and show me this error ;


"Error occured please contact application owner"

Actually, click submit request then mail come to us, but this error not coming mail to us.
I try to new user form sharing. But, doesn't help me.

What we can do about it? 
Regards, Utku.