Error MMM-Facial-Recognition

[kms4381]

I tried to run MMM-Facial-Recognition, but it was blocked at this point.

Whoops! There was an uncaught exception...
{ Error: KeyError: '/home/pi/MagicMirror/modules/MMM-Facial-Recognition-Tools/training.xml'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Facial-Recognition/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Facial-Recognition/node_modules/python-shell/index.js:129:32)
    at ChildProcess. (/home/pi/MagicMirror/modules/MMM-Facial-Recognition/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Facial-Recognition/facerecognition/facerecognition.py", line 59, in 
      model.read(config.get("/home/pi/MagicMirror/modules/MMM-Facial-Recognition-Tools/training.xml"))
    File "/home/pi/MagicMirror/modules/MMM-Facial-Recognition/facerecognition/config.py", line 55, in get
      return CONFIG[key]
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Facial-Recognition/facerecognition/facerecognition.py", line 59, in \n    model.read(config.get("/home/pi/MagicMirror/modules/MMM-Facial-Recognition-Tools/training.xml"))\n  File "/home/pi/MagicMirror/modules/MMM-Facial-Recognition/facerecognition/config.py", line 55, in get\n    return CONFIG[key]\nKeyError: \'/home/pi/MagicMirror/modules/MMM-Facial-Recognition-Tools/training.xml\'\n',
  executable: 'python',
  options: null,
  script:
   'modules/MMM-Facial-Recognition/facerecognition/facerecognition.py',
  args: null,
  exitCode: 1 }
MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues

my facerecognition.py is

import sys
import json
import time
import face
import cv2
import config
import signal

def to_node(type, message):
    try:
        print(json.dumps({type: message}))
    except Exception:
        pass
    sys.stdout.flush()

to_node("status", "Facerecognition started...")

current_user = None
last_match = None
detection_active = True
login_timestamp = time.time()
same_user_detected_in_row = 0

to_node("status", 'Loading training data...')

if config.get("recognitionAlgorithm") == 1:
    to_node("status", "ALGORITHM: LBPH")
    model = cv2.face.LBPHFaceRecognizer_create(threshold=config.get("lbphThreshold"))
elif config.get("recognitionAlgorithm") == 2:
    to_node("status", "ALGORITHM: Fisher")
    model = cv2.createFisherFaceRecognizer(threshold=config.get("fisherThreshold"))
else:
    to_node("status", "ALGORITHM: Eigen")
    model = cv2.createEigenFaceRecognizer(threshold=config.get("eigenThreshold"))

# Load training file specified in config.js
model.read(config.get("/home/pi/MagicMirror/modules/MMM-Facial-Recognition-Tools/training.xml"))
to_node("status", 'Training data loaded!')

camera = config.get_camera()

def shutdown(self, signum):
    to_node("status", 'Shutdown: Cleaning up camera...')
    camera.stop()
    quit()

signal.signal(signal.SIGINT, shutdown)

time.sleep(1)

while True:
    time.sleep(config.get("interval"))
    if detection_active is True:
        image = camera.read()
        image = cv2.cvtColor(image, cv2.COLOR_RGB2GRAY)
        result = face.detect_single(image)
        if result is None:
            if (current_user is not None and time.time() - login_timestamp > config.get("logoutDelay")):
                to_node("logout", {"user": current_user})
                same_user_detected_in_row = 0
                current_user = None
            continue
        x, y, w, h = result
        if config.get("recognitionAlgorithm") == 1:
            crop = face.crop(image, x, y, w, h)
        else:
            crop = face.resize(face.crop(image, x, y, w, h))
        label, confidence = model.predict(crop)
        if (label != -1 and label != 0):
            login_timestamp = time.time()
            if (label == last_match and same_user_detected_in_row < 2):
                same_user_detected_in_row += 1
            if label != last_match:
                same_user_detected_in_row = 0
            if (label != current_user and same_user_detected_in_row > 1):
                current_user = label
                to_node("login", {"user": label, "confidence": str(confidence)})
            last_match = label
        elif (current_user != 0 and time.time() - login_timestamp > 5):
            login_timestamp = time.time()
            current_user = 0
            to_node("login", {"user": current_user, "confidence": None})
        else:
            continue

#Load training file specified in config.js
model.read(config.get("/home/pi/MagicMirror/modules/MMM-Facial-Recognition-Tools/training.xml"))

Is this the cause?
What should I do about this part?

my config.js is

{
	module: "newsfeed",
	position: "bottom_bar",
	classes: 'minsoo',
	config: {
		feeds: [
			{
				title: "New York Times",
				url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
			}
		],
		showSourceTitle: true,
		showPublishDate: true
	}
},
{
	module: 'MMM-Facial-Recognition',
	config: {
		recognitionAlgorithm: 1,
		lbphThreshold: 50,
		fisherThreshold: 250,
		eigenThreshold: 3000,
		useUSBCam: true,
		trainingFile: 'modules/MMM-Facial-Recognition-Tools/training.xml',
		interval: 2,
		logoutDelay: 15,
		users: ['minsoo'],
		defaultClass: "default",
		everyoneClass: "everyone",
		welcomeMessage: true
		}
},
]

};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}

I am anxiously waiting for your help.