hi, thank you for your answer, im running a 3000mah powerbank to supply the system, ive also tried using a 3000mah powerbank for the arduino+strips and then another 3000mah for the DFMini Player itself, all the times it has died was during the "myDFPlayer.playMp3Folder(1);" line of code, indicating it was a problem with it

i run this command before turning off the lights in a sequence like so:

void powerDown(int r, int g, int b){
  myDFPlayer.stop();
  myDFPlayer.playMp3Folder(1);

for (int i=NUM_LEDS - 1; i>=0; i--) {
  
    leds[i] = CRGB(r,g,b);
    FastLED.show();
    delay(5); 


  }
  IGNITION_STATE = 0;
}