Easy one: The slotted holes on the right top! Change them to bigger holes (not slots/elongated holes).
Took me a few hours on my own design to figure this out.
Look at PCB Design Rules - 
Knowledge Base / Design Rules & Specs - AISLER Creative Community : With a simle design no plated holes are allowed.
Should look like this:
I needed a similar connector in the past, so this is why I know what is going on here 