Translation:It is okay.
When theres a ㅎ in the second spot of the batchim it usually just affects the pronunciation of the next consonant. So a ㄱ might sound closer to a ㅋ or a ㄷ a ㅌ. In this case, though ㅅ is already aspirated (has an h sound/ puff of air) so it doesn't affect the pronunciation of this word.
I believe that "ㄴ" and "ㄴㅎ" used to be pronounced differently from each other and over time they started to be pronounced the same, but people differentiate them still when writing. But not 100% sure.
Seems kind of like if someone asks why you need the k in knife, p in psychology, c in science, etc.