[nmader]

From what I see, this may do it, try changing to this:

Code:

	if(strcmp(cmdtext,"/fv",true) == 0)
	{
	    if (IsPlayerAdmin(playerid)SetVehicleHealth(GetPlayerVehicleID(playerid), 1000)));
            {
	            if (IsPlayerAdmin(playerid)RepairVehicle(GetPlayerVehicleID(playerid)));
                    {
	                   if (IsPlayerAdmin(playerid)SendClientMessage(playerid,RED,"ADMIN: Your vehicle has been repaired."));
		    }
                    else 
                    {
                    SendClientMessage(playerid,RED,"ERROR: This is an Admin only command.");
                    }
              }
              return 1;
	}

Lemme know if this works or not, I want to help as much as possible!