[X337]

You made a mistake here:

Код:

ShowPlayerDialog(playerid, 0, DIALOG_STYLE_INPUT, "Register", "Register with your desired password.", "Register", "Close");

which should be:

Код:

ShowPlayerDialog(playerid, 1, DIALOG_STYLE_INPUT, "Register", "Register with your desired password.", "Register", "Close");

Before you continue further making your registration system, i would suggest you to use BlueG's MySQL plugin instead of StrickenKid's one. And also you have to hash your player's password.