I used Xampp and deleted it. Then, I tried to use Mamp. There is an error that I don\'t understand. Mamp is working perfect as webserver. But if I want to use phpmyadmin, it do
I think that just put the application (in your Applications folder) is enough. But you can try to search some XAMPP garbages.
Open your terminal, sudo and search for something containing XAMPP:
sudo -s
[ Type your password ]
find / | grep -i xampp
It can take a time if you do not have a fast hdd. This will display all files/folder containing XAMPP in their name.