My Zorin Pro installation downgraded itself

My PC crashed the and when I logged back in by desktop layout had been reset. When I try to fix it in the Zorin Appearance app it tells me I need to upgrade to Pro even though I already have it and I have been using it for two years.

When I try to click it, it gets stuck on "checking for upgrades"
If I manually try to open up the Zorin upgrade app it does this


Pro user in need of Zorin OS Pro support.

@sea can you please give a review on any changes you made (don't worry, making modifications won't disqualify you from us trying to help. We just need to know details that might give us a clue what went wrong) to your system. This can include flatpak or snap installs, APT installations, customizations or third party PPA's.
You do not need an itemized list - but things that you remember doing are likely going to be significant things that may answer what happened.
You can review your added PPA's in Software & Updates > Other Software tab. Or from the printed list when running sudo apt update

Did you add or change any Gnome Extensions?


I haven't touched anything recently but here are my ppas

Hit:1 focal InRelease
Hit:2 ./ InRelease                     
Hit:3 focal InRelease                 
Get:4 focal-updates InRelease [114 kB]     
Get:5 focal InRelease [4,583 B]           
Hit:6 universal InRelease
Hit:7 focal InRelease                
Hit:8 focal InRelease        
Hit:9 default InRelease                     
Ign:10 makedeb InRelease                   
Get:11 focal-backports InRelease [108 kB]  
Get:12 focal-security InRelease [114 kB]     
Hit:13 focal InRelease                     
Hit:14 focal InRelease                    
Hit:15 focal InRelease    
Get:16 focal-updates/main amd64 DEP-11 Metadata [275 kB]
Hit:17 focal InRelease                       
Hit:18 focal InRelease                    
Get:19 makedeb Release [7,608 B]           
Get:20 focal-updates/universe amd64 DEP-11 Metadata [410 kB]
Hit:21 focal InRelease                    
Get:22 focal-updates/multiverse amd64 DEP-11 Metadata [944 B]
Hit:23 focal InRelease
Get:24 focal-backports/main amd64 DEP-11 Metadata [7,988 B]
Get:25 focal-backports/universe amd64 DEP-11 Metadata [30.5 kB]
Hit:27 focal InRelease        
Get:28 focal-security/main amd64 DEP-11 Metadata [59.8 kB]
Hit:29 focal InRelease   
Get:30 focal-security/universe amd64 DEP-11 Metadata [96.2 kB]
Get:31 focal-security/multiverse amd64 DEP-11 Metadata [940 B]
Get:32 focal InRelease [1,309 B]                        
Err:32 focal InRelease               
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E406D181DCEE19C
Hit:33 focal InRelease
Hit:34 focal InRelease
Hit:35 focal InRelease
Hit:36 focal InRelease
Hit:37 focal InRelease
Hit:38 focal InRelease
Hit:39 focal InRelease
Get:40 focal InRelease [18.1 kB]

First of all I would disabled all these PPAs you have added for a starters. I bet some of it messed up your system.

This is very odd. Why would X-swat, Zorin OS and Debian pipewire all say no public key is available?
I would think that your ZorinOS/drivers-/patches and /stable repos not being used (ignored due to no key) would cause partial - upgrades or missing packages.
Have you tried:

sudo apt-key adv --keyserver --recv-keys 0E406D181DCEE19C

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