Marketplace Download Is saying that there is not enough space on my device to download something, when there is enough space on device

My marketplace is saying that there is not enough space to download something onto my device, I have 19.6GB of free space on my switch and 302GB free space on a MicroSD card that is inside the storage extension slot. I am trying to download Real Raft Survival (By Shapescape) The item is only 153MB this is tiny compared to the amount of open storage space I have.