Welcome to the forum.
If you go into your infinityfree dashboard, is there a banner telling you about the suspension? Of so that will tell you what to do. If it’s temporally suspended, you just have to wait out the 24 hours. Or if it’s permanent you can raise a ticket
In the meantime this might help
Edit:
Leaving the above because it might be useful to others. But checked your site and it’s working
And one thing that’s important to note, if a website is viewable, it is public. Google and other search engines can find it, and can point traffic to it.