Download the logo by right-clicking (secondary-clicking) the image above and selecting "Save As..." or similar option.
If you've been linked to this, you probably made a language mistake and whoever sent this to you cared enough to point it out. The best thing to do is read the details and see where you went wrong.
Both mean "more far", but "farther" is used for physical distances, and "further" is used in all other cases, usually having to do with degree or intensity. "I ran farther today than yesterday", but "I won't give further information".
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