How to put a custom minimap in Rage MP

[Kareemo]

So I downloaded a map for a server and its working, I just need to change some parts of map and when I try it tells me files are corrupt when I  try starting the game

I just exported the map parts i want to change from

x64b.rpf\data\cdimages\scaleform_generic.rpf

and when I put my own ytd file for minimap sea 2 or 2 1

it says corrupted game data