Bug Downloading Android Module on Linux with Already Installed Unity

Hello,

I have an installed Unity3D on Linux (Ubuntu 18.04) Version 2018.3.0f2 (6e9a27477296) Personal but without Android module. Whenever I try to download the module, it redirect me to this page:

http://download.unity3d.com/downloa...tySetup-Android-Support-for-Editor-2018.3.0f2

Which return AccessDenied error.
What shall I do?

 

I tried to download the pkg of Mac but I don't know how shall I install it!