I can't get Dimension to render, no matter what I try.

Okay, so I have been trying to days to render this scene in various ways with various changes and boxes checked and unchecked and nothing is working.  Here is a shot of my computer and the version of Dimension, along with the error that keeps popping up.

I've tried rendering it locally, I've tried using the cloud.  Neither works.  If I try locally, the apple blue waiting ball just spins and spins endlessly for hours even, until I tell it to simply cancel the render.  It never seems to progress or do anything.

When I try to cloud render, it uploads the file just fine.  Then it says processing or whatever and I wait.  Then after a while, I just get back that error message that it was unable to cloud render.

I'll attach a screenshot of the scene I'm trying to render.  It's a board game layout.  Do I have too many graphics?  They are all formatted for web, so all the little tiles are only like 400kb images.  The board and box are like 7 and 10mb.

The crazy thing is that I was able to render this scene previously and get the psd file just fine, when I had a couple less elements, but it wasn't that drastically different, maybe just 20mb fewer jpg elements.

Help?