Maria DB not starting

I have a problem with mariadb.
I searched a bit in the forum and found some similar problems but still I cant solve it.

This is what I get.

Trying to start service mariadb... failed
* mariadb.service - MariaDB database server
Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2016-03-18 13:41:53 EET; 8ms ago
Process: 17553 ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID (code=exited,...

Maria DB not starting