app deployed no sound no picture
The domain troubleshooting guide can help with most custom domain configuration issues. You might be able to use that guide to solve it before a human is available to help you. Then you can come back here and share the answer for bonus points.
You can also use v0 to narrow down the possibilities.
Can you share more information about application?
I recommend you to read through our How to Get Good Answers guide and add more details to your post.