Game issues

I've recently been feeling like playing wow again so i came here but when i try to launch my game i get the following error message

This application has encountered a critial error:

ERROR #134 (0x85100086) Fatal condition!

program: c:Users\Eric\Desktop\WoW\wow.exe
ProcessID:10232

failed to open required archive
Data/enGB/wow-update-enGB-17345.MPQ with error : 5

Streaming Status: Data Rdy

Wow.mfil download error: None

Press OK to terminate the application.

has anyone had this issue before? any known fixes for this?
thanks in advance