FP Zero won't turn on when screwed close

[Berkley]

Looking for some guidance for where to check with troubleshooting my issue.
Everything works well except when the case is fully screwed shut.
I have tried putting electrical tape on a lot of things hoping to prevent a short that is causing this.
When I screw the board into the front, I can see parts of the board you can push down a little.
Any advice on where I should be looking first to resolve this issue?
Berkley

When it was screwed shut the tab on the power button wasn't pushing the inside power switch far enough.
Added a piece of plastic to the inside and shaved it down to fit.
Now it works.
Berkley