diff --git a/telethon_generator/data/errors.csv b/telethon_generator/data/errors.csv
index bebc0bca..c8ddba97 100644
--- a/telethon_generator/data/errors.csv
+++ b/telethon_generator/data/errors.csv
@@ -76,7 +76,8 @@ ENCRYPTION_ALREADY_ACCEPTED,400,Secret chat already accepted
 ENCRYPTION_ALREADY_DECLINED,400,The secret chat was already declined
 ENCRYPTION_DECLINED,400,The secret chat was declined
 ENCRYPTION_ID_INVALID,400,The provided secret chat ID is invalid
-ENCRYPTION_OCCUPY_FAILED,500,Internal server error while accepting secret chat
+ENCRYPTION_OCCUPY_FAILED,500,TDLib developer claimed it is not an error while accepting secret chats and 500 is used instead of 420
+ENTITIES_TOO_LONG,400,It is no longer possible to send such long data inside entity tags (for example inline text URLs)
 ENTITY_MENTION_USER_INVALID,400,You can't use this entity
 ERROR_TEXT_EMPTY,400,The provided error message is empty
 EXPORT_CARD_INVALID,400,Provided card is invalid
@@ -138,6 +139,7 @@ MESSAGE_ID_INVALID,400,The specified message ID is invalid
 MESSAGE_NOT_MODIFIED,400,Content of the message was not modified
 MESSAGE_TOO_LONG,400,Message was too long. Current maximum length is 4096 UTF-8 characters
 MSG_WAIT_FAILED,400,A waiting call returned an error
+MT_SEND_QUEUE_TOO_LONG,500,
 NEED_CHAT_INVALID,500,The provided chat is invalid
 NEED_MEMBER_INVALID,500,The provided member is invalid
 NETWORK_MIGRATE_X,303,The source IP address is associated with DC {new_dc}
@@ -181,6 +183,7 @@ PHOTO_INVALID_DIMENSIONS,400,The photo dimensions are invalid (hint: `pip instal
 PHOTO_SAVE_FILE_INVALID,400,The photo you tried to send cannot be saved by Telegram. A reason may be that it exceeds 10MB. Try resizing it locally
 PHOTO_THUMB_URL_EMPTY,400,The URL used as a thumbnail appears to be empty or has caused another HTTP error
 PIN_RESTRICTED,400,You can't pin messages in private chats with other people
+POLL_UNSUPPORTED,400,This layer does not support polls in the issued method
 PRIVACY_KEY_INVALID,400,The privacy key is invalid
 PTS_CHANGE_EMPTY,500,No PTS change
 QUERY_ID_EMPTY,400,The query ID is empty
diff --git a/telethon_generator/data/methods.csv b/telethon_generator/data/methods.csv
index 9b5f7cb8..65d1cf6f 100644
--- a/telethon_generator/data/methods.csv
+++ b/telethon_generator/data/methods.csv
@@ -233,7 +233,7 @@ messages.sendEncryptedFile,user,MSG_WAIT_FAILED
 messages.sendEncryptedService,user,DATA_INVALID ENCRYPTION_DECLINED MSG_WAIT_FAILED USER_IS_BLOCKED
 messages.sendInlineBotResult,user,CHAT_SEND_INLINE_FORBIDDEN CHAT_WRITE_FORBIDDEN INLINE_RESULT_EXPIRED PEER_ID_INVALID QUERY_ID_EMPTY WEBPAGE_CURL_FAILED WEBPAGE_MEDIA_EMPTY
 messages.sendMedia,both,BOT_POLLS_DISABLED CHANNEL_INVALID CHANNEL_PRIVATE CHAT_ADMIN_REQUIRED CHAT_SEND_MEDIA_FORBIDDEN CHAT_WRITE_FORBIDDEN EXTERNAL_URL_INVALID FILE_PARTS_INVALID FILE_PART_LENGTH_INVALID INPUT_USER_DEACTIVATED MEDIA_CAPTION_TOO_LONG MEDIA_EMPTY PEER_ID_INVALID PHOTO_EXT_INVALID PHOTO_INVALID_DIMENSIONS PHOTO_SAVE_FILE_INVALID RANDOM_ID_DUPLICATE STORAGE_CHECK_FAILED Timeout USER_BANNED_IN_CHANNEL USER_IS_BLOCKED USER_IS_BOT VIDEO_CONTENT_TYPE_INVALID WEBPAGE_CURL_FAILED WEBPAGE_MEDIA_EMPTY
-messages.sendMessage,both,AUTH_KEY_DUPLICATED BUTTON_DATA_INVALID BUTTON_TYPE_INVALID BUTTON_URL_INVALID CHANNEL_INVALID CHANNEL_PRIVATE CHAT_ADMIN_REQUIRED CHAT_ID_INVALID CHAT_RESTRICTED CHAT_WRITE_FORBIDDEN ENTITY_MENTION_USER_INVALID INPUT_USER_DEACTIVATED MESSAGE_EMPTY MESSAGE_TOO_LONG PEER_ID_INVALID RANDOM_ID_DUPLICATE REPLY_MARKUP_INVALID REPLY_MARKUP_TOO_LONG Timeout USER_BANNED_IN_CHANNEL USER_IS_BLOCKED USER_IS_BOT YOU_BLOCKED_USER
+messages.sendMessage,both,AUTH_KEY_DUPLICATED BUTTON_DATA_INVALID BUTTON_TYPE_INVALID BUTTON_URL_INVALID CHANNEL_INVALID CHANNEL_PRIVATE CHAT_ADMIN_REQUIRED CHAT_ID_INVALID CHAT_RESTRICTED CHAT_WRITE_FORBIDDEN ENTITIES_TOO_LONG ENTITY_MENTION_USER_INVALID INPUT_USER_DEACTIVATED MESSAGE_EMPTY MESSAGE_TOO_LONG PEER_ID_INVALID RANDOM_ID_DUPLICATE REPLY_MARKUP_INVALID REPLY_MARKUP_TOO_LONG Timeout USER_BANNED_IN_CHANNEL USER_IS_BLOCKED USER_IS_BOT YOU_BLOCKED_USER
 messages.sendMultiMedia,both,
 messages.sendVote,user,
 messages.setBotCallbackAnswer,both,QUERY_ID_INVALID URL_INVALID