Zorin OS PRO to Zorin OS Core when uninstalling python

[Deyvis17]

I have Zorin OS 16 PRO but after uninstalling python to update to the latest version of python, the system rebooted and now I have Zorin OS 16 Core.
How do I return to PRO without losing my files?

note: already tried with
sudo apt install zorin-os-desktop-premium
and the terminal returns me:
E: Unable to locate package zorin-os-desktop-premium

[C141ZorinOS]

I suspect you have two versions installed - ZOS 16 and ZOS17. If you can take a screenshot of your system drive using GPARTED to see how things are set up, maybe we can help.

[Deyvis17]

Before removing python I had the pro version, now the core appears in the configuration

[zabadabadoo]

There is bad forum history of people removing python versions ending up in tears. It is OK to add new versions of python but would advise against removing old versions.