Getting Bummer errors.. I dont understand why it is failling. I have tried a lot of things but no success..

package com.teamtreehouse;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;

public class Main {

    public static void main(String[] args) {
        // write your code here
        Prompter prompter = new Prompter();

        String story = "Thanks __name__ for helping me out.  You are really a __adjective__ __noun__ and I owe you a __noun__.";
        Template tmpl = new Template(story);
        try {

            List<String> res = prompter.promptForWords(tmpl);
            String results = tmpl.render(res);
            System.out.printf("Your TreeStory:%n%n%s", results);

        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

package com.teamtreehouse;
import java.io.Console;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*;


public class Prompter {
    private BufferedReader mReader;
    private Set<String> mCensoredWords;

    public Prompter() {
        mReader = new BufferedReader(new InputStreamReader(System.in));
        loadCensoredWords();
    }

    private void loadCensoredWords() {
        mCensoredWords = new HashSet<String>();
        Path file = Paths.get("resources", "censored_words.txt");
        System.out.println(file);
        List<String> words = null;
        try {
            words = Files.readAllLines(file);
        } catch (IOException e) {
            System.out.println("Couldn't load censored words");
            e.printStackTrace();
        }
        assert words != null;
        mCensoredWords.addAll(words);
    }

    public void run(Template tmpl) {
        List<String> results = null;
        try {
            results = promptForWords(tmpl);
            tmpl.render(results);

        } catch (IOException e) {
            System.out.println("There was a problem prompting for words");
            e.printStackTrace();
            System.exit(0);
        }}

    /**
     * Prompts user for each of the blanks
     *
     * @param tmpl The compiled template
     * @return
     * @throws IOException
     */
    public List<String> promptForWords(Template tmpl) throws IOException {
        List<String> words = new ArrayList<String>();
        for (String phrase : tmpl.getPlaceHolders()) {
            String word = promptForWord(phrase);
            words.add(word);
        }
        return words;
    }


    /**
     * Prompts the user for the answer to the fill in the blank.  Value is guaranteed to be not in the censored words list.
     *
     * @param phrase The word that the user should be prompted.  eg: adjective, proper noun, name
     * @return What the user responded
     */
   public String promptForWord(String phrase) throws IOException {
        boolean isValid = false;
        String userInput = "";
        while (!isValid) {
            System.out.printf("Enter your answer to the phrase '%s': ", phrase);
            try {
                userInput = this.mReader.readLine();
            } catch (IOException e) {
                System.out.println("Error reading input: " + e.getMessage());
                throw e; // rethrow the exception to be handled by the caller
            }

            if (userInput == null) {
                throw new IOException("Null input received from user.");
            }

            isValid = true;

            for (String censoredWord : mCensoredWords) {
                if (userInput.equalsIgnoreCase(censoredWord)) {
                    isValid = false;
                    System.out.println("That word is not allowed");
                    break;
                }
            }
        }
        return userInput;
    }
}