How to fix Ubuntu Software Center?

Question

Ubuntu Software Center doesn't work:

Answer 1

My Software Center was quitting on its own without even showing anything except the primary screen without any icons for any software. Thanks to Chai T.Rex, now it's working like a new machine.

sudo apt update
sudo apt dist-upgrade -y

Answer 2

Reinstall Ubuntu Software should solve the problem, press Ctrl+Alt+T to go to a terminal and type:

sudo apt purge gnome-software ubuntu-software
sudo apt autoremove
sudo apt install gnome-software ubuntu-software

_Source

If above method is not working (which you already mention it), try removing Gnome Software cache:

 rm -R ~/.cache/gnome-software