I am looking for advice on my latest order. I received notification my miner has shipped but UPS shows it is stuck in China due to "Missing or Incomplete Export Documents, they are working to obtain this information"

I have never had this issue before, but it has been awhile since ordering from bitmain.

Any idea what this means or any action I need to take to resolve?

Any input would be greatly appreciated.

edit - I live in the US