Problem to Aktivate Billing System

[ViktorT]

I have the following problem, I have the time what I had Plesk Billing but disabled back into the database, Plesk Billing is no longer displayed.
Now I have the thing the Site Builder 5, but if I want to publish a test account you have to have the billing system installed is installed but how do I activate it now because nothing is displayed.
Also I have no way in the admin area to view how many test account is already active.

Then I have to question the applications you have to upload now ale Appllikationen manually. Or how the updated when I press on check for updates nothing just happens