Development store disappeared after switching to a paid plan

I was working on my development store (bobsportraits.myshopify.com). I entered my credit card to switch my store to a paid plan, but when I clicked submit it crashed my whole site. My store is no longer listed as one of the stores under my developer account. I can’t access Shopify’s live chat because I’m only on the developer plans. Here’s a screenshot of what it looks like when I visit the URL.