Help changing this IR sketch to RF

OK, so with this sketch when I press button 1 it turns the relay on and the when i press button 1 again it turns the relay off. But that is it, the relay won't turn on again no matter how I press the button. It's almost as if the sketch isn't looping completely or something?

#include <RCSwitch.h>
#define RELAY1 5

int val = 0;
int old_val = 0;
int state = 1;
int RELAY = 5;

RCSwitch mySwitch = RCSwitch();

void setup() {
  Serial.begin(9600);
  pinMode(RELAY1, OUTPUT);
  mySwitch.enableReceive(0);
}

void loop() {
  if (mySwitch.available()) {
    
    unsigned long value = mySwitch.getReceivedValue();
    
    if (value == 5592323UL) {
      val = digitalRead(RELAY1);
      if ((val == HIGH) && (old_val == LOW)) {
        state = 1 - state;
      }
      
      old_val = val;
      
      if (state == 1) {
        digitalWrite(RELAY1, HIGH);
      } else {
        digitalWrite(RELAY1, LOW);
      }
      mySwitch.resetAvailable();
    }
  }
}