Unidentified Error Message

Im currently working on a Keyboard firmware.
I'll attach how it looks like right now.
but when i try to compile it, it gives me the error message:

note: in expansion of macro 'HIGH'

and it doesn't even tell me what's wrong(the red line indicator doesnt show up)
plz help

Thanks in advance

byte rowp[6]={13,14,15,16,17,18};                                     //connect rows to pins
byte colp[15]={19,20,21,22,23,24,25,26,27,28,29,30,31,32,33};         //connect columns to pins
byte ledColp[15]={35,36,37,38,39,40,41,42,43,44,45,46,47,48,49};      //connect led columns to pins
byte ledRowp[6]={2,3,4,5,6,7};                                        //connect led rows to pins
byte brightnessToggleKey=1,overrideSwitch=51;                         //connect the key next to delete directly to pin 1 and ground
char layout[90]={'ESC','KEY_F1','KEY_F2','KEY_F3','KEY_F4','KEY_F5','KEY_F6','KEY_F7','KEY_F8','KEY_F9','KEY_F10','KEY_F11','KEY_F12','KEY_DELETE','KEY_PAGE_UP','(char)96','1','2','3','4','5','6','7','8','9','0','-','=','KEY_BACKSPACE','KEY_PAGE_DOWN','KEY_TAB','q','w','e','r','t','y','u','i','o','p','[',']','(char)92','KEY_HOME','KEY_LEFT_CTRL','a','s','d','f','g','h','j','k','l','(char)59','(char)39','KEY_RETURN','KEY_END','KEY_CAPS_LOCK','KEY_LEFT_SHIFT','z','x','c','v','b','n','m','(char)44','(char)46','/','KEY_RIGHT_SHIFT','KEY_UP_ARROW','KEY_RETURN','KEY_LEFT_CTRL','(char)0','(char)0x5B','(char)0','(char)0','(char)32','(char)0','(char)0','(char)0','KEY_RIGHT_ALT','(char)0','KEY_RIGHT_CTRL','KEY_LEFT_ARROW','KEY_DOWN_ARROW','KEY_RIGHT_ARROW'};             //define keymap
char FnLayout[90]={'(char)0','(char)0xAD','(char)0xAE','(char)0xAF','(char)0','(char)0xB3','(char)0xB2','(char)0xB1','(char)0xB0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0x04','(char)0','(char)0','(char)0','(char)0xA6','(char)0xA7','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0x01','(char)0','(char)0x02','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0','(char)0'};              //define keymap of function layer
bool pressedKey[90],pressedKeyOld[90],backlitKeys[90],backlitKeysRow1[15],backlitKeysRow2[15],backlitKeysRow3[15],backlitKeysRow4[15],backlitKeysRow5[15],backlitKeysRow6[15];
byte brightness;
bool brightnessToggleKeyState,brightnessToggleKeyStateOld;


void setup(){
  byte temp;                                                          //create temporary variable to use in for loops
  for(temp=13;temp<19;temp++){
    pinMode(temp,INPUT_PULLUP);
  }                                                                   //set row pins to input_pullup
  for(temp=19;temp<34;temp++){
    pinMode(temp,OUTPUT);
    digitalWrite(temp,HIGH);
  }                                                                   //set column pins to output(to use them as temporary grounds) and write them high(to avoid making it into ground)
  for(temp=2;temp<8;temp++){
    pinMode(temp,OUTPUT);
  }                                                                   //set led row pins to output. these pins are capable of pwm outputs
  for(temp=35;temp<50;temp++){
    pinMode(temp,OUTPUT);
    digitalWrite(temp,HIGH);
  }                                                                   //set led column pins to output(to use them as temporary grounds) and write them high(to avoid making it into ground)
  pinMode(brightnessToggleKey,INPUT_PULLUP);                          //initialize the push button(which is actually a switch but whatever it acts like a pushbutton)
  Keyboard.begin();
  Mouse.begin();
}


void loop(){
  configureBacklitKeys();
  scanForPressedKeys();
  outputToPC();
  configureBacklightBrightness;
}


void scanForPressedKeys(){
  for(byte col=0;col<90;col++){
    digitalWrite(colp[col],LOW);
    for(byte row=0;row<6;row++){
      if(digitalRead(rowp[row])==LOW){
        pressedKey[(row-1)*15+col-1]=HIGH;
      }else{
        pressedKey[(row-1)*15+col-1]=LOW;
      }
    }
    digitalWrite(colp[col],HIGH);
  }
  for(byte i = 0;i<90;i++){
    pressedKeyOld[i]=pressedKey[i];
  }
}


void outputToPC(){
  if(pressedKey[71]==LOW&&pressedKey[80]==LOW){
    for(byte i=0;i<90;i++){
      if(pressedKey[i]!=pressedKeyOld[i]){
        if(pressedKey[i]==HIGH){
          Keyboard.press(layout[i]);
        }else{
          Keyboard.release(layout[i]);
        }
      }
    }
  }else{
    for(byte i=0;i<90;i++){
      if(pressedKey[i]!=pressedKeyOld[i]){
        if(pressedKey[i]==HIGH){
          Keyboard.press(FnLayout[i]);
        }else{
          Keyboard.release(FnLayout[i]);
        }
      }
    }
  }
}


void configureBacklightBrightness(){
  brightnessToggleKeyStateOld=brightnessToggleKeyState;
  if(digitalRead(brightnessToggleKey)==LOW){
    brightnessToggleKeyState=HIGH;
  }else{
    brightnessToggleKeyState=LOW;
  }
  if(brightnessToggleKeyState!=brightnessToggleKeyStateOld&&brightnessToggleKeyState==HIGH){
    if(brightness!=255){
      brightness+=51;
    }else{
      brightness=0;
    }
  }
}


void configureBacklitKeys(){
  if(pressedKey[71]==HIGH&&pressedKey[80]==HIGH){
    while(digitalRead(brightnessToggleKey)==HIGH){
      scanForPressedKeys();
      for(byte i=0;i<90;i++){
        if(pressedKey[i]!=pressedKeyOld[i]&&pressedKey==HIGH){
          backlitKeys[i]=pressedKey[i];
        }
      }
      convertBacklitKeysArray();
    }
  }
}

void convertBacklitKeysArray(){
  for(byte i=0;i<90;i++){
    backlitKeysRow1[i]=backlitKeys[i];
  }
  for(byte i=15;i<30;i++){
    backlitKeysRow2[i-15]=backlitKeys[i];
  }
  for(byte i=30;i<45;i++){
    backlitKeysRow3[i-30]=backlitKeys[i];
  }
  for(byte i=45;i<60;i++){
    backlitKeysRow4[i-45]=backlitKeys[i];
  }
  for(byte i=60;i<75;i++){
    backlitKeysRow5[i-60]=backlitKeys[i];
  }
  for(byte i=75;i<90;i++){
    backlitKeysRow6[i-75]=backlitKeys[i];
  }
}

void outputBacklight(){
  
}

EDIT:
sry. it was a simple mistake.
i didnt index pressedKey.
that's the second time i posted without thinking.
ill try not to let it happen again

Edit: CODE TAGS {sobs}

char layout[90]={'ESC','KEY_F1','KEY_F2','KEY_F3','KEY_F4','KEY_F5','KEY_F6','KEY_F7','KEY_F8','KEY_F9','KEY_F10','KEY_F11','KEY_F12','KEY_DELETE','KEY_PAGE_UP','(char)96','1','2','3','4','5','6','7','8','9','0','-','=','KEY_BACKSPACE','KEY_PAGE_DOWN','KEY_TAB','q','w','e','r','t','y','u','i','o','p','[',']','(char)92','KEY_HOME','KEY_LEFT_CTRL','a','s','d','f','g','h','j','k','l','(char)59','(char)39','KEY_RETURN','KEY_END','KEY_CAPS_LOCK','KEY_LEFT_SHIFT','z','x','c','v','b','n','m','(char)44','(char)46','/','KEY_RIGHT_SHIFT','KEY_UP_ARROW','KEY_RETURN','KEY_LEFT_CTRL','(char)0','(char)0x5B','(char)0','(char)0','(char)32','(char)0','(char)0','(char)0','KEY_RIGHT_ALT','(char)0','KEY_RIGHT_CTRL','KEY_LEFT_ARROW','KEY_DOWN_ARROW','KEY_RIGHT_ARROW'};

Single quotes are for single characters. This whole array is rubbish.

There are so many errors here I don't know where to start. Perhaps a question: Given this code:

for(byte i=0;i<90;i++){
    backlitKeysRow1=backlitKeys;
  }

what are you trying to do? backlitKeysRow1[] is an array with 15 elements, but you're marching through it like there's 90 elements. backlitKeys[] has 90 elements but somehow on each pass through the loop you're assuming all 90 elements are going to fit in just 1 element of backlitKeysRow1[]. Really? As it stands now, you repeat the same (wrong) assignment 90 times. Do you think array subscripts might be useful somewhere along the way?

Methinks you need to spend some time studying how arrays work. Just Google "Arduino C arrays" and surely something will help you.

EDIT:
sry. it was a simple mistake.

No, it's a lot of simple mistakes.