[RIDE2DAY]

You can't format strings with SendClientMessage, it supports just three arguments: the ID of the player, the color and the message itself.

Use format instead:

PHP код:

new string[128];
format(string, sizeof(string), "Admin %s[%d] ti-a dat ban pentru %s zile. (Motiv: %s)", name, playerid, zi, reason);
SendClientMessage(ID, COLOR_YELLOW, string);