TyMonBuilder

Once I get to about 82% of downloading Blightfall, and the progress bar says "Downloading Mod: extra-tic-v1.4.5.zip" it gives me an error report that says "Error downloading a file for the following pack: Blightfall Failed to download http://mirror.technicpack.net/Technic/mods/extra-tic/extra-tic-v1.4.5 Please consult the modpack author" Anyone know how I can fix this?