"Tilda" label appears when I share my project on Facebook. What can I do about it?

To show the name of your application instead of the Tilda label, you need to add your Facebook app ID (access token) to Tilda. To do this, open Site settings → More → Facebook app access token → paste it there.

Here is how you can create a Facebook access token (FB app ID): https://developers.facebook.com/docs/apps/register