Pubkey Geogebra in Ubuntu 20.04
I use your software because I am a Math teacher in high school, but I have some problems with the installation in my notebook. It's an Asus F555L notebook running in both Windows10 and LInux Ubuntu 20.04. I prefer much more Ubuntu, which is the OS I use the most. In any case I can't add the Geogebra GPG KEY: I've tried both installing the software with the downloaded .deb file and adding the key via terminal. No way, it always says: "NO_PUBKEY C072A32983A736CF". Anyway, the software runs in my PC, once installed via .deb file.
Could you please help me to solve the problem?