-expected unqualified-id before if

Here is the code and I have problem with the last if.. Till the last if, everything worked just fine. I mean. I wrote the code till the last if on the bottom of the code.. literally the last if

It says: 63:4:error: expected unqualified-if before if. exit status 1

It also appears smth red at digitalWrite(ledPin2, LOW); What is the solution?

const int buttonPin1 = 5; // the number of the pushbutton pin
const int buttonPin2 = 4;
const int buttonPin3 = 3;
const int buttonPin4 = 2;
const int ledPin1 = 10; // the number of the LED pin
const int ledPin3 = 12;
const int ledPin2 = 11;
const int ledPin4 = 13;
// variables will change:
int buttonState1 = 0; // variable for reading the pushbutton status
int buttonState2 = 0;
int buttonState3 = 0;
int buttonState4 = 0;
void setup()
{
    // initialize the LED pin as an output:
    pinMode(ledPin1, OUTPUT);
    pinMode(ledPin3, OUTPUT);
    pinMode(ledPin2, OUTPUT);
    pinMode(ledPin4, OUTPUT);
    // initialize the pushbutton pin as an input:
    pinMode(ledPin1, INPUT);
    pinMode(ledPin3, INPUT);
    pinMode(ledPin2, INPUT);
    pinMode(ledPin4, INPUT);
}
void loop()
{
    // read the state of the pushbutton value:
    buttonState1 = digitalRead(buttonPin1);
    buttonState2 = digitalRead(buttonPin2);
    buttonState3 = digitalRead(buttonPin3);
    buttonState4 = digitalRead(buttonPin4);
    // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
    if (buttonState1 == HIGH) {
        // turn LED on:
        digitalWrite(ledPin1, HIGH);
        digitalWrite(ledPin3, HIGH);
    }
    else {
        // turn LED off:
        digitalWrite(ledPin1, LOW);
        digitalWrite(ledPin3, LOW);
    }
    if (buttonState2 == HIGH) {
        // turn LED on:
        digitalWrite(ledPin2, HIGH);
        digitalWrite(ledPin4, HIGH);
    }
    else {
        // turn LED off:
        digitalWrite(ledPin2, LOW);
        digitalWrite(ledPin4, LOW);
    }
    if (buttonState3 == HIGH)
        do {
            digitalWrite(ledPin2, HIGH);
            digitalWrite(ledPin4, HIGH);
            digitalWrite(ledPin1, HIGH);
            digitalWrite(ledPin3, HIGH);
        }

        while (buttonState4 == LOW);
}

if (buttonState4 == HIGH)
    do {
        digitalWrite(ledPin2, LOW);
        digitalWrite(ledPin4, LOW);
        digitalWrite(ledPin1, LOW);
        digitalWrite(ledPin3, LOW);

        while (buttonState4 == HIGH)
            ;
    }