Problem on Steam Workshop

[Chuck Joris]

Hi,
I made a map (my 1st, Libertyville) which i uploaded on L4Dmaps. (Seems to work on this site)
Then, i wanted to upload it on the steam workshop.
However, if you want to play it, you can't. Because the loading when you start the game don't work !
The error message shown on the console is : "
An error occurred while attempting to download a file from the UGC server!
"
I tried to update my map to fix this issue but it still don't work. I'm very frustrated because everybody who want to play my map can't do it !
Please help me to fix my problem :( I searched on the net but i found nothing...