I’m no expert when it comes to this sutff, but it looks to me like the name is still rppigating across the internet. It takes 12-36 hours for all name servers to update when you make a switch.
It seems to me that some of the DNS servers have updates, while others have not pulled the data yet. I can’t resolve the name from here (greater chicago area) yet, but that does say much.
How long has it been since you update the records with your registrar? If you’re really concerned - you might as well also put a ticket into support, and see if they have any other sigguestions - but bear in mind that if there is an error it will take at least an while for the changes to propigate again.
My guess would be that if the issue really is just waiting for it to finish propigating, it most likely will be up by morning. If not it’s gonna be a day or so.
Hope this helps