Fab server admin problem

Hello, i write you because i have a problem,

On my pserver, all players can speaks excepted Admins... To be admin, i use HeidiSQL and set the rank to 3
if anyone can help me please, thanks !

Set Star Requirement to chat to 0 in the game menu

Note: everyone that is ranked have to individually do it

unless you set default to 0

How can i set default to 0 ? because i have 5 friends will come in few times and i will make them admin too

Thanks for your help