Access Violation Error when changing the url

[[Deleted]]

Hello,i've written a dll to upload file via webrequest for testing porpuses.

The dll is working fine when the url is LOCALHOST and i can see the uploaded data in my server folder.

When i change the link to test an api,using the same code,but changing only the URL i get :

 

my mql5 code is simple:

#import "IAIA.dll"
string get();
#import
void OnStart()
  {
Print(get());
  }

is there any reason that changing the URL could give us this error ?

Thank you !

obs: the dll works with any URL without error outside MT5