There can be 2 reasons why your widget is showing an "unavailable" message:

- Your account has been disabled (trial ended, or you've suspended your subscription). 

In this case, simply log in to resume your subscription and your widget will be available again.

- You do not have at least one staff linked to one service in your account.

To solve this, log in to your Agendize account, and make sure that it contains a staff, a service, and that they are linked (see below):

From a staff member page, assignation is done under "Advanced Settings

From a service page, assignation is done under the "Staff members that can perform the service" section.