diff --git a/.gitignore b/.gitignore
index 4370e35..59d6915 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ __pycache__
 *.sqlite3
 *.save
 
+*.xls
 /audio
 /tts-gc-key.json
 /test.py
diff --git a/Zieit/Zieit.py b/Zieit/Zieit.py
index 51bff74..9ac84c8 100644
--- a/Zieit/Zieit.py
+++ b/Zieit/Zieit.py
@@ -1,4 +1,9 @@
 from Command import Command                     #   import parent class
+import urllib.request
+import xlrd
+import xlwt
+from xlutils.copy import copy
+from datetime import datetime
 
 class Zieit (Command):
     lessonsStartTime = ['07:55','09:25','11:05','12:35','14:05','15:45','17:15']
@@ -7,8 +12,8 @@ class Zieit (Command):
     def start(this, string):                    #   main method
         pass
 
-    @staticmethod
-    def getShedule():
+    @classmethod
+    def getShedule(self):
         url = 'https://www.zieit.edu.ua/wp-content/uploads/Rozklad/2k.xls'
         name = url.split('/')[-1]
         urllib.request.urlretrieve(url, name)
@@ -52,18 +57,19 @@ class Zieit (Command):
                     lesson['type'] = row[14]
         return week
 
-    @staticmethod
-    def getTodaysShedule():
-        week = getShedule()
+    @classmethod
+    def getTodaysShedule(self):
+        week = self.getShedule()
         for d, lessons in week.items():
             date = datetime.strptime(d, "%d.%m.%Y").date()
             today = datetime.now().date()
             if date == today: return lessons
         return None
 
-    @staticmethod
-    def getNextLesson(lessonsTime):
-        lessons = getTodaysShedule()
+    @classmethod
+    def getNextLesson(self, lessonsTime):
+        lessons = self.getTodaysShedule()
+        if lessons == None: return None
         next = {}
         for i, lesson in lessons.items():
             border = datetime.strptime(lessonsTime[i-1], '%H:%M').time()
diff --git a/Zieit/myshedule.py b/Zieit/myshedule.py
index 1f713d4..2041c4e 100644
--- a/Zieit/myshedule.py
+++ b/Zieit/myshedule.py
@@ -1,10 +1,6 @@
 from .Zieit import *
-import urllib.request
-import xlrd
-import xlwt
-from xlutils.copy import copy
 ################################################################################
-def nextLesson(params):
+def nextLessonMethod(params):
     lesson   = Zieit.getNextLesson(Zieit.lessonsStartTime)
     if lesson == None: voice = text = 'Сегодня пар нет'
     else:
@@ -23,4 +19,4 @@ def nextLesson(params):
 keywords = {}
 patterns = ['* следующ* (предмет|урок|пара)']
 nextLesson = Zieit('Next Lesson', keywords, patterns)
-nextLesson.setStart(nextLesson)
+nextLesson.setStart(nextLessonMethod)
diff --git a/telegram_bot.py b/telegram_bot.py
index f212176..093e4b4 100644
--- a/telegram_bot.py
+++ b/telegram_bot.py
@@ -5,6 +5,7 @@ import Text2Speech
 import telebot
 import config
 import modules
+import time
 
 threads = []
 online  = True
@@ -70,4 +71,5 @@ while True:
         print("Start polling...")
         bot.polling(callback = check_threads, args = (threads,) )
     except:
+        time.sleep(10)
         print("Polling failed")