Weird stuff! Your app definitely should not have deleted without you intentionally deleting it. When deleting your app, Bubble asks you to type the name of the app exactly as it was made to prevent mistakes. If you didn’t do that, and it’s gone, file a bug report.
Regarding your DNS record connection — if done correctly, it can take quite a few hours to propagate.
My recommendation would be to delete all your A records in the Google Domains portal and also delete the domain name from the Domain/Email section of your Bubble app. Then:
- enter your domain name exactly as it is into Bubble and press “Change app domain.”
- add the four A records to Google (note—when doing the “www” records, do “www.yourdomain.net”
After this, let it sit for a little bit—again, to let it propagate. If none of this works, search the forums widely for this (as there is most likely plenty of others that had difficulties with this) and ask there. There are plenty of Bubblers who are happy to help.