Update app.py

app.py

@@ -3,7 +3,7 @@ import logging
 import time
 import logzero
 import uuid
-from flask import Flask, request, send_file, jsonify, make_response
+from flask import Flask, request, send_file, jsonify, make_response, render_template
 from werkzeug.utils import secure_filename
 from flask_apscheduler import APScheduler
 from functools import wraps