Cannot update due to apt-get issue

[Foxy]

Hi
I wanted to do an FTL update. But that always comes an error:

 [✗] Update local cache of available packages
  Error: Unable to update package cache. Please try "sudo apt-get update"
  Unable to complete update, please contact Pi-hole Support

And sudo apt-get update does not work either
Does anyone have an idea

[jfb]

@Foxy

And sudo apt-get update does not work either

What is the complete output of sudo apt-get update

[Foxy]

@Foxy

sudo apt-get update

It only says to try sudo apt-get update and that's what I did

[jfb]

I am looking for the complete output of that command so we can see where the problem lies.

[Foxy]

Where can I find the?

[jfb]

Run the following command from the Pi terminal. Then post both the command and the output that is returned.

sudo apt-get update

[Foxy]

 sudo apt-get update
OK:1 http://archive.raspberrypi.org/debian buster InRelease
Holen:2 http://raspbian.raspberrypi.org/raspbian buster InRelease [15,0 kB]
Paketlisten werden gelesen... Fertig
E: Für das Depot »http://raspbian.raspberrypi.org/raspbian buster InRelease« wur                                                                                                                                                             de der »Suite«-Wert von »stable« in »oldstable« geändert.
N: Sie müssen dies explizit bestätigen, bevor Aktualisierungen von diesem Depot                                                                                                                                                              angewendet werden können. Lesen Sie die apt-secure(8)-Handbuchseite, wenn Sie we                                                                                                                                                             itere Informationen benötigen.

[jfb]

Run the following command to accept the release change:

sudo apt-get update --allow-releaseinfo-change

[Foxy]

Thanks works fine