"GNOME Web" installation failure

Hi Folks,
I tried to install the GNOME Web browser from Software>GNOME Web>Install

I received the error:

Detailed errors from the package manager follow:

Not found org.gnome.Platform/x86_64/3.26

Not sure how to resolve this.

This sounds like a Flatpak instead of a regular package, maybe @zlatan-todoric would have some trick for it, otherwise it might be best to file it as a bug report in tracker.pureos.net

It does sound like flatpak thingy. Can you paste me the output of this command:
cat /etc/apt/sources.list
and also if there is some source in /etc/apt/sources.list.d/ dir.
Simple solution to this should anyway be to run this command in terminal:
sudo apt install epiphany-browser