So I asume you followed the instructions on https://wiki.winehq.org/Ubuntu. But since elementary OS is based on Ubuntu 18.04, you should have used the ppa for Ubuntu bionic, not focal.
To try and fix the issue:
please remove the focal ppa:
sudo add-apt-repository --remove 'deb https://dl.winehq.org/wine-builds/ubuntu/ focal main'
sudo apt update
follow the ...