Eligibility check failed: Your current account is not eligible for Antigravity

I have a family plan of using the antigravity CLI here. But I don’t know why I start the project and told me no valid license. What happen? Also , the Cli have Eligibility check and get the error.

Eligibility Check
⎿ Eligibility check failed: Your current account is not eligible for Antigravity, because it is not currently available in your location.

I can use it normally a few week. I have no idea on it now.