true/false switch toggling back to zero

Question

So I tried making a script, that switches the value of a boolean between true and false. For some reason, every time I press the connected button, the boolean value goes to one, but then immediately back to zero

bool on = false;

if(digitalRead(inputOn) == HIGH && on == false){
     on = true; 
     digitalWrite(outputLedGreen6, HIGH);
     Serial.print("OnStatus");
     Serial.println(on);
     delay(500);

  } else if(digitalRead(inputOn) == HIGH){
    on = false;
    digitalWrite(outputLedGreen6, LOW);
    Serial.print("OnStatus");
    Serial.println(on);
    delay(500);

  } 

Answer 1

bool on = false;

if(digitalRead(inputOn) == HIGH && on == false){
     on = true; 
     digitalWrite(outputLedGreen6, HIGH);
     Serial.print("OnStatus");
     Serial.println(on);
     delay(500);

  } 
  else if(digitalRead(inputOn) == HIGH ){ //CHANGE THIS LINE HERE
  //In the question, there was no else statement. Only 2 ifs. So whenever the first if statement executed, the second would also execute.

    on = false;
    digitalWrite(outputLedGreen6, LOW);
    Serial.print("OnStatus");
    Serial.println(on);
    delay(500);

  }