How do I resize my images so they arent autocropped ?

I understand how to resize in lightroom but I am wondering what size I should resize them to so wix wont autocrop them when I use the wix pro gallery

This forum is for any issues with code itself, for help with Wix Pro Gallery you need to go through Wix Support or read their support pages about it.
https://support.wix.com/en/wix-photography/wix-pro-gallery-7525045