If you search for “Admin down” within the status of the Extension Page, you may find official definition of trunk is restricted from Station.
More likely it is just that the station profile is “disabled”
Click on the Extension to pull up the property sheet of the extension profile, and near the top click the Enable, scroll the box to the end, click save.
Then refresh the extension page using the refresh icon.
Should be back to normal.
Liquid Layer Networks