Wifi Connection not working since Update

I just ran a full update on my V-Minion and now I am unable to connect to a new Wifi. The only way to interact with the machine atm is Klipperscreen that, when going to the network menu, states that it failed to detect network manager. Before when it was still connected to the old wifi I was at least still able to connect via ssh and start the networkmanager service manually, which led to me being able to see the list of available wifi networks but when i then tried to access the new Wifi network I got an error saying that it doesnt have permission to connect to it.
Now I am locked out of the machine because it is not connected to any wifi and i am unable to reconnect it since i cannot use the klipperscreen network page.
It's the stock setup with Raspi 3A+ so no ethernet port as an alternative.
What possibilities do i have?
Solution
That was misleading, klipper screen wasn't dead it just wasn't working and showing an error on the Homescreen while also for some reason klipper could not connect to the printer. I disconnected the screen and everything worked fine throughout the workshop today. 🥰
Next time I come around to doing work on the printer I will Update everything in the correct order. Thanks for the help again.
Btw who is responsible for theRatOS installation manual on the Ratrig site?
I think I have some inputs on how it could be made clearer and easier to follow.
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