Is it being blocked from downloading or blocked from running? If it's the former, try one of our mirror links:
mediafire: https://www.mediafire.com/?m1v5w9sdny6tr6h
mega: https://mega.nz/#!pcIR2BxB!HxRtTKS17ETct7G80tgtvTFTre0_63EyqLLnEpVGuOA
Otherwise, it sounds like you may need to turn your firewall off temporarily while downloading.
If you have successfully downloaded the mod and your computer is blocking it from running, you'll probably need to make an exception in your firewall or turn it off while playing.