How do i fix multiple images when applied to a box mesh

How do i fix mutiple images when applied to a box mesh(BSP).I made a material from a image i downloaded from internet and when i applied to a box mesh,it shows multiples images.I want to a single image.

Besides that not looking like a power of two image. (512x512, 1024x1024, etcxetc)
Read this: Coordinates Expressions | Unreal Engine Documentation

It explains how the texture coordinate node works.
You might need to change some values there.