Can I uninstall and reinstall Ubuntu Software Center?
Press CTRL+ALT+T simultaneously to enter terminal.
To uninstall Software Center:
sudo apt-get remove software-centersudo apt-get autoremove software-center
To re-install Software Center:
sudo apt-get updatesudo apt-get install software-center
You can uninstall and reinstall the Software Center with a single command. This also resets any of its systemwide configuration files to their defaults.
sudo apt-get --purge --reinstall install software-center
If you want to get a newer version of the Software Center if there's one available as an update, make sure to run sudo apt-get update first (as you'd usually do when installing any software from the Terminal).
As for whether or not this will fix the problem, sometimes it does, and sometimes it doesn't. It depends on specifically what is wrong. I recommend removing user-specific Software Center configuration files as well:
cd ~/.config; rm -r software-center
If the problems persist, I recommend reporting a bug.