diff --git a/bot.py b/bot.py
index a6eba73..7ddf572 100644
--- a/bot.py
+++ b/bot.py
@@ -193,10 +193,13 @@ class Bot(telebot.TeleBot):
             yield Community.from_dict(community_data)
 
     def poll_user_for_community(self, user: User, community: Community):
-        def_answer = False   # community.default_answers.get(user.user_id, True)
-        self.send_template(user.user_id, 'poll_user', community=community, answer=def_answer)
-        community.pool += [user.user_id] * def_answer
-        community.polled[user.user_id] = datetime.date.today()
+        try:
+            def_answer = False   # community.default_answers.get(user.user_id, True)
+            community.polled[user.user_id] = datetime.date.today()
+            self.send_template(user.user_id, 'poll_user', community=community, answer=def_answer)
+            community.pool += [user.user_id] * def_answer
+        except telebot.apihelper.ApiTelegramException:
+            pass
 
     def poll_users_in_community(self, community: Community):
         for user_id in community.users_to_poll():
@@ -223,9 +226,12 @@ class Bot(telebot.TeleBot):
 
     def send_meeting_info_in_community(self, community: Community):
         for meeting in community.scheduled_meetings:
-            person_1, person_2 = self.get_chat(meeting[0]), self.get_chat(meeting[1])
-            self.send_template(meeting[0], 'meeting_info', community=community, meeting=meeting, person=person_2)
-            self.send_template(meeting[1], 'meeting_info', community=community, meeting=meeting, person=person_1)
+            try:
+                person_1, person_2 = self.get_chat(meeting[0]), self.get_chat(meeting[1])
+                self.send_template(meeting[0], 'meeting_info', community=community, meeting=meeting, person=person_2)
+                self.send_template(meeting[1], 'meeting_info', community=community, meeting=meeting, person=person_1)
+            except telebot.apihelper.ApiTelegramException:
+                pass
         community.archived_meetings += community.scheduled_meetings
         community.scheduled_meetings = []
         self.save_community(community)
diff --git a/user.py b/user.py
index 854c833..7f4d4a7 100644
--- a/user.py
+++ b/user.py
@@ -2,6 +2,9 @@ from __future__ import annotations
 from dataclasses import dataclass, field, asdict
 import typing
 import time
+
+import telebot
+
 from community import Community
 from telebot.types import ChatMember
 
@@ -28,7 +31,10 @@ class User:
         if chat_id in self.checked_chats:
             return False
         self.checked_chats.append(chat_id)
-        chat_member_info: ChatMember = bot.get_chat_member(chat_id, self.user_id)
+        try:
+            chat_member_info: ChatMember = bot.get_chat_member(chat_id, self.user_id)
+        except telebot.apihelper.ApiTelegramException:  # user not found
+            return False
         return chat_member_info.is_member or chat_member_info.status in ['creator', 'administrator', 'admin', 'member']
 
     def dict(self) -> dict: