Problem with the launcher...

[Coper]

Okay I have several problems with the launcher:

-First, I don't see any modpacks shown on the launcher, like Voltz, Tekkit, etc...

I only see "Loading" and it doesn't load, if I click on the "Loading" it becomes "Add new modpack" but there is no modpacks like I said...

-Then, if I try to paste an URL to an unoffical modpack, it doesn't work :

So what should I do ? Already reinstalled w/ deleting all files...