[PLUGIN] Touch Display

Hi Folks,

today I saw my touch display is not working anymore.
I checked it with the normal raspios and here it works.
So I tried to reinstall the touch display plugin.
Uninstall works fine, but the installation fails with:

The following packages have unmet dependencies:
chromium-browser : Depends: chromium-codecs-ffmpeg-extra (= 92.0.4515.98~buster-rpt2) but it is not going to be installed or
chromium-codecs-ffmpeg (= 92.0.4515.98~buster-rpt2) but it is not going to be installed
Depends: libraspberrypi0 but it is not installable
Recommends: chromium-browser-l10n but it is not going to be installed
Installation of Chromium failed
Plugin failed to install!
Cleaning up...

I also tried this, but there’s no beta version:
Raspberry Pi Touch Display didn´t work any more

How can I fix that to bring my display back to life?

The display is an official Raspberry Pi 7 Display.

Many thanks