TIS/TSM ERROR & crash while looping()

anyone know why this is crashing right when it should loop?

import processing.sound.*;

// Declare the processing sound variables 
SoundFile sample;
Amplitude rms;

// Declare a scaling factor
float scale=1;

// Declare a smooth factor
float smooth_factor=0.25;

// Used for smoothing
float sum;

PImage img;       // The source image
int cellsize = 2; // Dimensions of each cell in the grid
int columns, rows;   // Number of columns and rows in our system

public void setup() {
  size(800, 1000, P3D); 
  //fullScreen(P3D);
  img = loadImage("...");  // Load the image
  columns = img.width / cellsize;  // Calculate # of columns
  rows = img.height / cellsize;  // Calculate # of rows

    //Load and play a soundfile and loop it
    sample = new SoundFile(this, "...");
    sample.loop();

    // Create and patch the rms tracker
    rms = new Amplitude(this);
    rms.input(sample);

}

void draw() {
  background(255,0,255);
  // Begin loop for columns
  for ( int i = 0; i < columns; i++) {
    // Begin loop for rows
    for ( int j = 0; j < rows; j++) {
      int x = i*cellsize + cellsize/2;  // x position
      int y = j*cellsize + cellsize/2;  // y position
      int loc = x + y*img.width;  // Pixel array location
      color c = img.pixels[loc];  // Grab the color
      // Calculate a z position as a function of mouseX and pixel brightness
      //float z = width/2 * brightness(img.pixels[loc]) - 20.0;
        float rms_scaled=sum*width/10 * brightness(img.pixels[loc]) - 20.0;

     // smooth the rms data by smoothing factor
    sum += (rms.analyze() - sum) * smooth_factor;  

    // rms.analyze() return a value between 0 and 1. It's
    // scaled to height/2 and then multiplied by a scale factor


      // Translate to the location, set fill and stroke, and draw the rect
      pushMatrix();
      //translate(x + 300, y + 250, rms_scaled);
      translate(x + 200, y + 200, rms_scaled);
      fill(c, 204);
      noStroke();
      rectMode(CENTER);
      rect(0, 0, cellsize, cellsize);
      popMatrix();
    }
  }
}