c++ Problemas com uma consulta

[GuilhermeHecher]

Quando tento verificar se uma conta já existe no meu sistema de login, encontro o seguinte erro

** [MySQL]: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''GH_CEO'' at line 1

 

Código responsável pela verificação:

function:Player_Init(playerid)
{
	static const empty_player[playerData];
	PlayerData[playerid] = empty_player;

	GetPlayerName(playerid, PlayerData[playerid][pUsername], MAX_PLAYER_NAME);


	new query[103];
	mysql_format(g_iHandle, query, sizeof query, "SELECT * FROM `characters` WHERE `AcountName` = '%s' LIMIT 1", PlayerData[playerid][pUsername]);
	mysql_tquery(g_iHandle, query, "r@Player_Init", "d", playerid);

	return true;
}