problem with configuring Secure Email on mobile Device

hi,

month ago i registered on Symantec APP Center... 

and i wanted to test "Secure Email" on my mobile device...

on APP Center i didnot configure Integration with AD...

i just created local account in web portal..

and also installed Secure Email on my mobile device (Android v4.2.2)...

ive got problem with configuring this application:

during the configuration i receive an error on my smartphone:

Connection to https://localhost refused Exception performing request Activesync version check returned negative. but still trying for 12.1

need help