Zip Folder Problem

[ErimusReyes]

I don't know what is wrong but when I try using the FTB unleashed it doesn't work...
It tells me there is a problem when unzipping the folder.
Does using Technic Launcher effect this at all?

 

[Nerixel]

Please follow the instructions at this link.
If it still doesn't work, create a thread in Tech Support, this section is for feedback on the website and forum.