Issue with checkout of cards on TCGplayer website

[MonkInTheTrunk]

Not sure if I'm the right spot to be asking this, but I saw no other options.

I got about 42 cards in my cart, proceeded through the checkout past the point of entering my shipping/billing info, clicked the Submit Order button, and... nothing. I get an internal error message every time, but no other explanation.

If anyone knows of a quick fix beyond just waiting it out, assuming it's an issue on their side, it'd be much appreciated Thanks.

[VictorSant]

I'm also having the same issue, the following message shows up:
We are experiencing some issue with shipping to your country. We are actively working on a fix and hope to be able to ship to your country starting next week.

But even with asking for a US friend to try it out the same error still happens.