Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:
sudo /etc/init.d/apache2 stop
sudo /etc/init.d/mysql stop
sudo /etc/init.d/proftpd stop
sudo /opt/lampp/lampp start
Other solutions didn’t work in my case, doing a garbage collection fixed it for me:
git gc --aggressive
press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below:
sudo /etc/init.d/apache2 stop
sudo /etc/init.d/mysql stop
sudo /etc/init.d/proftpd stop
sudo /opt/lampp/lampp start