Hello!
for your box, with inactive (expired) support, box's version 1.18 is LATEST available.
you can read about this here:
Infinity-Box Technical Support • View topic - How to fix "You should extend your support period"
Only those users who extended their support period can get ver 1.20
and use latest updates.
But if you dont wish to extend support period,
then with box ver.1.18 you can use Mmodule up to version 4.14 and other older programs.
Also, main support area will allow to download 1 file per day