It looks like i’ve the same Zone error after i made some changes in my zones via the Beta Homey App last night.
A zone disappeared but devices where still attached to it. I thought i solved the problem by recreating the zone(s) and relink the devices but by viewing my devices via the Web App I got the “Something went wrong” message, unless i view the devices in the list view.
Did someone figure out how to repair this loop yourself?