Nomad Crashes when I’m Voxel merging two objects

I’m trying to merge two objects in my latest project, but whenever I try to do so, the app crashes and I have no way to finish my work

I suspect you simply run out of memory and there is no solution to that.

What kind of memory? My device memory?

Yes your tablet/phone RAM.

What is your device and how much polygons do the 2 objects have?