@scottalanmiller but i remember when i installed that linux application i type the following command (in their documentation)
apt-get -y install php5-gd php5-mysql php5 php5-cli apache2 libapache2-mod-php5 tshark mtr mysql-server php5-mcrypt librsvg2-bin gsfonts
so i think this command installed mysql not MariaDB, so i have to upgrade or something ??
i fear if i change mysql to MariaDB, this application will stop