Interrupt issue

Sorry, but no digitalWrite and delay are used in an interrupt function in this code, here are the interrupts functions.

void countingballs(){
  Time1 = millis();
  if(Time1 - lastTime1 > 250){
  count_d++;
  lastTime1 = Time1;
  }
}

void counting(){
  count++;
}

void stateInv(){
  y = 1;
  }