Can't order concierge parts & can't edit profile pagee

When attempting to order concierge part, get error “Error submitting request: Internal server error” (click purchase part on screen after
entering part number and url). I haven’t ordered parts in a while, and have zero credit, so when attempted to edit profile (I assume this is where credit card info is stored), got a similar error.
Neither Firefox nor Safari works.

Emailed support several days ago about the issue, but didn’t get any response.

I’m having similar trouble. I tried adding credit to my account by adding a credit card. I wasn’t able to add the card and received an error that the merchant’s (upverter) account is disabled or closed. I also sent an email to support and have received no reply.