blank view of Module when i change a value of country

[Hassene kh]

Hi , 

i had developed my module it works fine,

but when I change value of a country in the form address of my will be banked, don't why !

For info : i had used :  {widget name ="my module" } to display may module in the form , it has any relation with the problem ? 

r

Edited December 16, 2020 by Hassene kh (see edit history)