Yes, I have the same problem. My website (byte.unaux.com) was working before, but now it returns DNS_PROBE_FINISHED_NXDOMAIN. The hosting account is still marked as Active in the control panel, but the domain no longer resolves in DNS. I confirmed this using both Google DNS (8.8.8.8) and Cloudflare DNS (1.1.1.1), and both return NXDOMAIN.
I think this issue is affecting everyone. I woke up to it today’s morning. All of my hosted sites are showing that error. I initially thought it to be something I can fix, but after trying a lot of ways to figure out, I came to realize it affects every free hosted site. @admins and @Admin should please step in and help us out as it has caused us a lot of frustrations.