MOP Wont even run on my computer for some reason

I downloaded MOP today in hopes to try it out and play it, instead I keep getting Bizzard Errors when I try to run it like I do the Cata and Litch King Expansion. It continually tells me it has ran into an unexpected error. Thebn gives me a reporting ID to report it to blizzard. Then Closes down. It pops up with an Error x134 (0X85100086) Fatal Condition.

Failed to open Required Archive
Data/enGB/wow-update-enGB17325.MPQ with error 5

Streaming Status: Data Rdy
Wow.mfil download error: None
Press ok to terminate the application.

Any help for this? I downloaded it straight from the website?

Thanks,
Killdare34

It might be a problem with one of your downloaded files. Since it is MoP, can you check whether this smaller version is working for you?
If it works, the error might reside into one of your \Data files (probably the one mentioned in the error)

that Error is because you used WoW.exe.
You have to use WoW_WoD_models.exe to start the game. That is because you downloaded MoP with WoD models

Thanks you So much!