[icra]

Код:

stock GetGender(playerid)
{
	new Gender[6];
	switch(PlayerInfo[playerid][Gender])
	{
	  case 1: {
            format(gender, sizeof(gender), "Male");
          }
	  case 2: Gender = "Female";
    }
    return Gender;
}

In your code you declared an array but you didn't used all its dimensions.

Example:

new string[3] = "ABC";
It has 3 dimensions and you must type 3 dimensions.