diff --git a/td/telegram/AnimationsManager.cpp b/td/telegram/AnimationsManager.cpp
index e0a91aa48..59e62d883 100644
--- a/td/telegram/AnimationsManager.cpp
+++ b/td/telegram/AnimationsManager.cpp
@@ -501,6 +501,9 @@ void AnimationsManager::load_saved_animations(Promise<Unit> &&promise) {
 }
 
 void AnimationsManager::on_load_saved_animations_from_database(const string &value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     LOG(INFO) << "Saved animations aren't found in database";
     reload_saved_animations(true);
diff --git a/td/telegram/BackgroundManager.cpp b/td/telegram/BackgroundManager.cpp
index 69300f8eb..ffbb8c939 100644
--- a/td/telegram/BackgroundManager.cpp
+++ b/td/telegram/BackgroundManager.cpp
@@ -473,6 +473,10 @@ BackgroundId BackgroundManager::search_background(const string &name, Promise<Un
 }
 
 void BackgroundManager::on_load_background_from_database(string name, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   auto promises_it = being_loaded_from_database_backgrounds_.find(name);
   CHECK(promises_it != being_loaded_from_database_backgrounds_.end());
   auto promises = std::move(promises_it->second);
diff --git a/td/telegram/ContactsManager.cpp b/td/telegram/ContactsManager.cpp
index 46f649a7f..c1ad3aa7c 100644
--- a/td/telegram/ContactsManager.cpp
+++ b/td/telegram/ContactsManager.cpp
@@ -4718,6 +4718,10 @@ void ContactsManager::load_imported_contacts(Promise<Unit> &&promise) {
 }
 
 void ContactsManager::on_load_imported_contacts_from_database(string value) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   CHECK(!are_imported_contacts_loaded_);
   if (need_clear_imported_contacts_) {
     need_clear_imported_contacts_ = false;
@@ -6673,6 +6677,9 @@ void ContactsManager::on_deleted_contacts(const vector<UserId> &deleted_contact_
 }
 
 void ContactsManager::save_next_contacts_sync_date() {
+  if (G()->close_flag()) {
+    return;
+  }
   if (!G()->parameters().use_chat_info_db) {
     return;
   }
@@ -6769,6 +6776,9 @@ void ContactsManager::on_get_contacts_failed(Status error) {
 }
 
 void ContactsManager::on_load_contacts_from_database(string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     reload_contacts(true);
     return;
@@ -7161,6 +7171,10 @@ void ContactsManager::save_user_to_database_impl(User *u, UserId user_id, string
 }
 
 void ContactsManager::on_save_user_to_database(UserId user_id, bool success) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   User *u = get_user(user_id);
   CHECK(u != nullptr);
   LOG_CHECK(u->is_being_saved) << user_id << " " << u->is_saved << " " << u->is_status_saved << " "
@@ -7213,6 +7227,10 @@ void ContactsManager::load_user_from_database_impl(UserId user_id, Promise<Unit>
 }
 
 void ContactsManager::on_load_user_from_database(UserId user_id, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   if (!loaded_from_database_users_.insert(user_id).second) {
     return;
   }
@@ -7427,6 +7445,10 @@ void ContactsManager::save_chat_to_database_impl(Chat *c, ChatId chat_id, string
 }
 
 void ContactsManager::on_save_chat_to_database(ChatId chat_id, bool success) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   Chat *c = get_chat(chat_id);
   CHECK(c != nullptr);
   CHECK(c->is_being_saved);
@@ -7473,6 +7495,10 @@ void ContactsManager::load_chat_from_database_impl(ChatId chat_id, Promise<Unit>
 }
 
 void ContactsManager::on_load_chat_from_database(ChatId chat_id, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   if (!loaded_from_database_chats_.insert(chat_id).second) {
     return;
   }
@@ -7656,6 +7682,10 @@ void ContactsManager::save_channel_to_database_impl(Channel *c, ChannelId channe
 }
 
 void ContactsManager::on_save_channel_to_database(ChannelId channel_id, bool success) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   Channel *c = get_channel(channel_id);
   CHECK(c != nullptr);
   CHECK(c->is_being_saved);
@@ -7702,6 +7732,10 @@ void ContactsManager::load_channel_from_database_impl(ChannelId channel_id, Prom
 }
 
 void ContactsManager::on_load_channel_from_database(ChannelId channel_id, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   if (!loaded_from_database_channels_.insert(channel_id).second) {
     return;
   }
@@ -7888,6 +7922,10 @@ void ContactsManager::save_secret_chat_to_database_impl(SecretChat *c, SecretCha
 }
 
 void ContactsManager::on_save_secret_chat_to_database(SecretChatId secret_chat_id, bool success) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   SecretChat *c = get_secret_chat(secret_chat_id);
   CHECK(c != nullptr);
   CHECK(c->is_being_saved);
@@ -7935,6 +7973,10 @@ void ContactsManager::load_secret_chat_from_database_impl(SecretChatId secret_ch
 }
 
 void ContactsManager::on_load_secret_chat_from_database(SecretChatId secret_chat_id, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   if (!loaded_from_database_secret_chats_.insert(secret_chat_id).second) {
     return;
   }
@@ -12728,7 +12770,7 @@ void ContactsManager::load_dialog_administrators(DialogId dialog_id, Promise<Uni
 
 void ContactsManager::on_load_dialog_administrators_from_database(DialogId dialog_id, string value,
                                                                   Promise<Unit> &&promise) {
-  if (value.empty()) {
+  if (value.empty() || G()->close_flag()) {
     promise.set_value(Unit());
     return;
   }
diff --git a/td/telegram/HashtagHints.cpp b/td/telegram/HashtagHints.cpp
index d587c6826..06d6c8f52 100644
--- a/td/telegram/HashtagHints.cpp
+++ b/td/telegram/HashtagHints.cpp
@@ -86,6 +86,10 @@ void HashtagHints::hashtag_used_impl(const string &hashtag) {
 }
 
 void HashtagHints::from_db(Result<string> data, bool dummy) {
+  if (G()->close_flag()) {
+    return;
+  }
+
   sync_with_db_ = true;
   if (data.is_error() || data.ok().empty()) {
     return;
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index 84fd51eea..5c3084e08 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -16588,6 +16588,9 @@ vector<FullMessageId> MessagesManager::get_active_live_location_messages(Promise
 }
 
 void MessagesManager::on_load_active_live_location_full_message_ids_from_database(string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     LOG(INFO) << "Active live location messages aren't found in the database";
     on_load_active_live_location_messages_finished();
diff --git a/td/telegram/StickersManager.cpp b/td/telegram/StickersManager.cpp
index 593af40d3..76c879480 100644
--- a/td/telegram/StickersManager.cpp
+++ b/td/telegram/StickersManager.cpp
@@ -3060,6 +3060,9 @@ void StickersManager::load_installed_sticker_sets(bool is_masks, Promise<Unit> &
 }
 
 void StickersManager::on_load_installed_sticker_sets_from_database(bool is_masks, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     LOG(INFO) << "Installed " << (is_masks ? "mask " : "") << "sticker sets aren't found in database";
     reload_installed_sticker_sets(is_masks, true);
@@ -3266,6 +3269,9 @@ void StickersManager::load_sticker_sets_without_stickers(vector<StickerSetId> &&
 }
 
 void StickersManager::on_load_sticker_set_from_database(StickerSetId sticker_set_id, bool with_stickers, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   StickerSet *sticker_set = get_sticker_set(sticker_set_id);
   CHECK(sticker_set != nullptr);
   if (sticker_set->was_loaded) {
@@ -3852,6 +3858,9 @@ void StickersManager::load_featured_sticker_sets(Promise<Unit> &&promise) {
 }
 
 void StickersManager::on_load_featured_sticker_sets_from_database(string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     LOG(INFO) << "Trending sticker sets aren't found in database";
     reload_featured_sticker_sets(true);
@@ -3928,6 +3937,9 @@ void StickersManager::load_old_featured_sticker_sets(Promise<Unit> &&promise) {
 }
 
 void StickersManager::on_load_old_featured_sticker_sets_from_database(uint32 generation, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (generation != old_featured_sticker_set_generation_) {
     return;
   }
@@ -4914,6 +4926,9 @@ void StickersManager::load_recent_stickers(bool is_attached, Promise<Unit> &&pro
 }
 
 void StickersManager::on_load_recent_stickers_from_database(bool is_attached, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     LOG(INFO) << "Recent " << (is_attached ? "attached " : "") << "stickers aren't found in database";
     reload_recent_stickers(is_attached, true);
@@ -5332,6 +5347,9 @@ void StickersManager::load_favorite_stickers(Promise<Unit> &&promise) {
 }
 
 void StickersManager::on_load_favorite_stickers_from_database(const string &value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (value.empty()) {
     LOG(INFO) << "Favorite stickers aren't found in database";
     reload_favorite_stickers(true);
diff --git a/td/telegram/WebPagesManager.cpp b/td/telegram/WebPagesManager.cpp
index 55d5ecd92..06bddaf19 100644
--- a/td/telegram/WebPagesManager.cpp
+++ b/td/telegram/WebPagesManager.cpp
@@ -919,6 +919,9 @@ void WebPagesManager::reload_web_page_instant_view(WebPageId web_page_id) {
 }
 
 void WebPagesManager::on_load_web_page_instant_view_from_database(WebPageId web_page_id, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   CHECK(G()->parameters().use_message_db);
   LOG(INFO) << "Successfully loaded " << web_page_id << " instant view of size " << value.size() << " from database";
   //  G()->td_db()->get_sqlite_pmc()->erase(get_web_page_instant_view_database_key(web_page_id), Auto());
@@ -1072,6 +1075,9 @@ void WebPagesManager::load_web_page_by_url(const string &url, Promise<Unit> &&pr
 
 void WebPagesManager::on_load_web_page_id_by_url_from_database(const string &url, string value,
                                                                Promise<Unit> &&promise) {
+  if (G()->close_flag()) {
+    return;
+  }
   LOG(INFO) << "Successfully loaded url \"" << url << "\" of size " << value.size() << " from database";
   //  G()->td_db()->get_sqlite_pmc()->erase(get_web_page_url_database_key(web_page_id), Auto());
   //  return;
@@ -1545,6 +1551,9 @@ string WebPagesManager::get_web_page_database_key(WebPageId web_page_id) {
 }
 
 void WebPagesManager::on_save_web_page_to_database(WebPageId web_page_id, bool success) {
+  if (G()->close_flag()) {
+    return;
+  }
   const WebPage *web_page = get_web_page(web_page_id);
   if (web_page == nullptr) {
     LOG(ERROR) << "Can't find " << (success ? "saved " : "failed to save ") << web_page_id;
@@ -1583,6 +1592,9 @@ void WebPagesManager::load_web_page_from_database(WebPageId web_page_id, Promise
 }
 
 void WebPagesManager::on_load_web_page_from_database(WebPageId web_page_id, string value) {
+  if (G()->close_flag()) {
+    return;
+  }
   if (!loaded_from_database_web_pages_.insert(web_page_id).second) {
     return;
   }