Addon won't mount

[STEAM WORKSHOP WAS DOWN; SOLVED]

Hello,

I have a skin addon that is around 6MB before compressing on Workshop. When I subscribe to it, it is 173 bytes in the Steam download section. Steam also registers me being subscribed to it. But when I launch GMod, I get this in console:


Couldn't mount addon - couldn't find file addons/[l]_senco_emergency_management_562335268.gma
Addons have changes - remounting
Download Finished
Error downloading file - Generic Failure!?
END: DownloadAddons


When I go to “My Uploads” section of the “Addons” tab, the addon is marked as not installed or just plain white. If I go to click ‘install’ the installation box pops up for a split second and goes away, I then get this message in console:


GOT FILE DETAILS!
Adding duplicate file!Download Finished
Error downloading file - Generic Failure!?
END: DownloadAddons


I have tried to re-upload the addon and I am back to square one. If it matters, I am using the Workshopper tool.

http://puu.sh/lysUt/9c5810b434.jpg

Any help or suggestions would be greatly appreciated. Thank you in advance.