fingerprint lock with use of Involt for HTML usage

Hi,
I'm trying to make a fingerprint lock with the use of Involt to be able to use it from a website as well. I can make noth the fingerprint scanner and Involt work separately but not together.
Here is my code

#include <Adafruit_Fingerprint.h>
int solenoidPin = 3; 
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 5);
int    involtPin[14] = {}; //equals involt.pin.P in app
String involtString[2] ={}; //equals involt.pin.S in app
char involt[16];
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);
String fname;
int getFingerprintIDez();
void setup()  
{
  Serial.begin(9600);
  while (!Serial);  // For Yun/Leo/Micro/Zero/...
  delay(100);
  Serial.println("\n\nAdafruit finger detect test");
  // set the data rate for the sensor serial port
  finger.begin(57600);
  
  if (finger.verifyPassword()) {
    Serial.println("Found fingerprint sensor!");
  } else {
    Serial.println("Did not find fingerprint sensor :(");
    while (1) { delay(1); }
  }

  finger.getTemplateCount();
  Serial.print("Sensor contains "); Serial.print(finger.templateCount); Serial.println(" templates");
  Serial.println("Waiting for valid finger...");
  {
  pinMode(3, OUTPUT);          //Sets that pin as an output
  }
}

void loop() // run over and over again
{
  getFingerprintIDez();
  delay(50);            //don't ned to run this at full speed.
  digitalWrite(13, HIGH);
}  

uint8_t getFingerprintID() {
  uint8_t p = finger.getImage();
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image taken");
      break;
    case FINGERPRINT_NOFINGER:
      Serial.println("No finger detected");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_IMAGEFAIL:
      Serial.println("Imaging error");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }

  // OK success!

  p = finger.image2Tz();
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image converted");
      break;
    case FINGERPRINT_IMAGEMESS:
      Serial.println("Image too messy");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error");
      return p;
    case FINGERPRINT_FEATUREFAIL:
      Serial.println("Could not find fingerprint features");
      return p;
    case FINGERPRINT_INVALIDIMAGE:
      Serial.println("Could not find fingerprint features");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }
  
  // OK converted!
  p = finger.fingerFastSearch();
  if (p == FINGERPRINT_OK) {
    Serial.println("Found a print match!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    return p;
  } else if (p == FINGERPRINT_NOTFOUND) {
    Serial.println("Did not find a match");
    return p;
  } else {
    Serial.println("Unknown error");
    return p;
  }   {
  Serial.print("Found ID #"); Serial.print(finger.fingerID); 
  Serial.print(" with confidence of "); Serial.println(finger.confidence); 
  digitalWrite(12, HIGH);
  digitalWrite(13, LOW);
  digitalWrite(solenoidPin, HIGH);
  delay(5000);
  digitalWrite(12, LOW);
  digitalWrite(solenoidPin, LOW);
  return finger.fingerID;

}

// returns -1 if failed, otherwise returns ID #
int getFingerprintIDez() {
  uint8_t p = finger.getImage();
  if (p != FINGERPRINT_OK)  return -1;

  p = finger.image2Tz();
  if (p != FINGERPRINT_OK)  return -1;

  p = finger.fingerFastSearch();
  if (p != FINGERPRINT_OK)  return -1;
  
  // found a match!
  Serial.print("Found ID #"); Serial.print(finger.fingerID); 
  Serial.print(" with confidence of "); Serial.println(finger.confidence);
  digitalWrite(12, HIGH);
  digitalWrite(13, LOW);
  digitalWrite(solenoidPin, HIGH);
  delay(5000);
  digitalWrite(12, LOW);
  digitalWrite(solenoidPin, LOW);
  }
  else
  {
  involtReceive();
  digitalWrite(3, involtPin[3]);
}
}
void involtReceive(){
  if(Serial.available()>0) {
    Serial.readBytesUntil('\n',involt,sizeof(involt));
    int pin;
    if (involt[0] == 'P'){
      int value;
      sscanf(involt, "P%dV%d", &pin, &value);
      involtPin[pin] = value;
    }
    else if (involt[0] == 'S'){
      char value[sizeof(involt)];
      sscanf(involt, "S%dV%s", &pin, &value);
      involtString[pin] = value;
    }
    else if (involt[0] == 'F'){
      char value[sizeof(involt)];
      sscanf(involt, "F%s", &value);
      fname = value;
    };
    memset(involt,0,sizeof(involt));
  };
};

void involtSend(int pinNumber, int sendValue){
  Serial.print('A'); 
  Serial.print(pinNumber); 
  Serial.print('V'); 
  Serial.print(sendValue); 
  Serial.println('E');
  Serial.flush();
};

void involtSendString(int pinNumber, String sendString){
  Serial.print('A'); 
  Serial.print(pinNumber); 
  Serial.print('V'); 
  Serial.print(sendString); 
  Serial.println('E'); 
  Serial.flush();

};

void involtSendFunction(String functionName){
  Serial.print('F'); 
  Serial.print(functionName); 
  Serial.println('E'); 
  Serial.flush();
};

What is Involt? You didnt provide a link to it?

Is that a web service of some kind? MQTT?

What finger print lock? You didnt provide a link to it?