Lightroom Downloader Storage Error

Hi, 

I need to use the Lightroom downloader (mac OS) to get my photos before my account is deleted. It's 6.1 GB and no matter where I try to download to it says not enough free space available. I have 20 GB of internal storage and tried to use a 32 GB flashdrive as well. I already did every update as well. 

I don't have access to my account anymore, so this is the only way I can get my photos. Any help please, I'm so sad and Adove has already taken so much of my money 😞