#include <SPI.h>
#include <MFRC522.h>
#include <LiquidCrystal.h>
#include <Servo.h>

#define RST_PIN         9        // Configurable, see typical pin layout above
#define SS_PIN          10          // Configurable, see typical pin layout above

MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance.
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
Servo myservo;  // create servo object to control a servo

String read_rfid;
String ok_rfid_1 = "6722323b";
String ok_rfid_2 = "99be859e";
int posClosed = 180;    // variable to store the servo position for locked
int posOpen = 0;    //same for open...



/*
 Initialize.
*/
 void setup() {
  Serial.begin(9600);         // Initialize serial communications with the PC
   while (!Serial);            // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
    SPI.begin();                // Init SPI bus
    mfrc522.PCD_Init();         // Init MFRC522 card
    lcd.begin(16, 2);
    lcd.clear();
    lcd.print("Scan your card:");
    Serial.println("Scan your card:");
    //Choose which lock below:
    myservo.attach(7);  // attaches the servo on pin 7 to the servo object
    }

    /*
     Helper routine to dump a byte array as hex values to Serial.
     */
     void dump_byte_array(byte *buffer, byte bufferSize) {
     read_rfid = "";
     for (byte i = 0; i < bufferSize; i++) {
     read_rfid = read_rfid + String(buffer[i], HEX);
      }
     }

void open_lock() {
  //Use this routine when working with Servos.
  //lcd.clear();
  lcd.print("Servo Unlocking");
  myservo.write(posOpen);
  Serial.println("Servo Unlocking");
  delay(10000);
  myservo.write(posClosed);
  lcd.clear();
  lcd.print("Servo Locking");
  Serial.println("Servo Locking");
}

void loop() {
  lcd.clear();
  lcd.print("test");
  // Look for new cards
  if ( ! mfrc522.PICC_IsNewCardPresent())
    return;

  // Select one of the cards
  if ( ! mfrc522.PICC_ReadCardSerial())
    return;

  dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size);
  if (read_rfid == ok_rfid_1) {
    open_lock();
    lcd.clear();
    lcd.print(read_rfid + " (FRED FARMER)" + " -Access Granted");
    Serial.println(read_rfid + " (FRED FARMER)" + " -Access Granted");
    delay(10000);
    lcd.clear();
    lcd.print("Scan a card:");
    Serial.println("Scan a card:");

  }
  if (read_rfid == ok_rfid_2) {
    open_lock();
    lcd.clear();
    lcd.print(read_rfid + " (JOHN DOE) " + " -Access Granted");
    Serial.println(read_rfid + " (JOHN DOE) " + " -Access Granted");
    delay(10000);
    lcd.clear();
    lcd.print("Scan a card:");
    Serial.println("Scan a card:");
  }
  else {
    lcd.clear();
    lcd.print(read_rfid + " -Access Denied");
    Serial.println(read_rfid + " -Access Denied");
    delay(10000);

    lcd.clear();
    lcd.print("Scan your card:");
    Serial.println("Scan your card:");
  }
}

I have tried running the arduino library "Hello World" example, and it successfully runs the text onto the screen. Therefore I have determined that it is not a hardware problem, rather a code problem. -It occasionally does display "ff" on the lcd, but that is it.