Troubleshooting
Errors and messages What Multogram's messages mean: error screens at application start, refusals when a task starts, errors in the task log (session, chat access, privacy, FloodWait, username, invitations), AI assistant and ticket errors — what each one means and what to do.
Find the text of the message on this page (Ctrl + F or the documentation search) — next to it is what
it means and what to do.
An error in the task log looks like this:
[+79001234567] @channel_name: No permission to send to this chat (WRITE_FORBIDDEN)
[+79001234567] — the account the error happened on;
@channel_name — the target it happened on;
then — what happened, and in brackets — the error code. For a rate limit the brackets also hold the wait
time: (RATE_LIMITED, 23 s);
after the brackets, for FloodWait, a ban and a lost session — what the account does: "— the account stops working
in this task" or "— waiting 23 s and continuing".
An error on one target doesn't stop the task: the account moves on to the next target. An account
stops working only when the end of the line says so — the other accounts continue.
Message What it means What to do No free device slots All of the account's device slots are taken Unlink an old device or buy a slot — Devices This device is blocked This computer is not allowed to work with the account Contact support Device not recognised The computer could not be identified Restart the application; if it happens again, contact support Account blocked The Multogram account is blocked Contact support to find out why Secure connection unavailable A secure connection to the server could not be established Close developer tools, restart, install the latest version Server not configured The build has no server address Reinstall the application from the official website Something went wrong The application could not start Try again ; if it happens again, contact supportInvalid email or password The sign-in details didn't match Check the email or username and the password Update required You can't keep working on the old version Install the update The update package failed verification The update file is damaged Try again or download the installer from the website
Message What it means What to do This mode is not part of your plan The mode isn't in the plan or the plan has ended Plans This mode is not in the catalog. Update the application. An outdated version of the application Update the application The account has no slot left for this computer No free device slot Devices This computer is not registered on the account yet Device linking didn't finish Wait a few seconds and try again Could not reach the server to confirm the start No connection to the server Check the internet connection and try again Sign in to start the task You signed out of your Multogram account Sign in again Fill in the required settings on the mode tab Empty required fields Fill them in Select at least one row in … No rows are ticked in the mode's table Tick rows, for example messages in Message Editor There can't be more threads than selected accounts Too many threads Reduce the threads The scheduled time must be in the future The schedule is in the past Pick another time Create or open an accounts database first No table is selected for Auto Registration Open a database on the Accounts tab Could not start the session: … The account couldn't sign in to Telegram See the "Session and account" section below
Message Code What to do No active Telegram session NO_SESSIONThe session didn't start — check the account and the proxy Telegram session error SESSION_ERRORCheck the account with the Check accounts mass action The account's session is no longer valid (signed out or revoked) AUTH_KEY_UNREGISTEREDSign in to the account again The account's session was revoked SESSION_REVOKEDThe session was terminated from another device — sign in again The account's session has expired SESSION_EXPIREDSign in again The account is deleted or deactivated USER_DEACTIVATEDTake the account out of work The account is banned by Telegram USER_DEACTIVATED_BANTake the account out of work The phone number is banned by Telegram PHONE_NUMBER_BANNEDTake the account out of work
Message Code What to do Could not resolve the Telegram target INVALID_TARGETCheck the @username or the link Chat or user not found PEER_ID_INVALIDThe target was deleted or the link is wrong This username doesn't exist USERNAME_NOT_OCCUPIEDCheck the spelling Target message not found MESSAGE_NOT_FOUNDThe post was deleted or wasn't found by the search indicators — give a link to the post Join the channel/group before performing this action JOIN_TARGET_REQUIREDSubscribe the account — Subscribers Booster Join the discussion group before commenting JOIN_DISCUSSION_REQUIREDSubscribe the account to the channel's discussion group This target can't be joined CANNOT_JOIN_TARGETThe target is closed to joining The invite link has expired INVITE_HASH_EXPIREDGet a new invite link The invite link is invalid INVITE_HASH_INVALIDCheck the link The account is banned in this chat USER_BANNED_IN_CHANNELThe account was banned in the chat — remove this target Administrator rights are required in this chat CHAT_ADMIN_REQUIREDYou need an administrator account
Message Code What to do No permission to send to this chat WRITE_FORBIDDENWriting is forbidden in the chat — remove the target Comments are disabled for this post COMMENTS_DISABLEDThe channel has no discussion group The user has blocked this account USER_BLOCKED_YOURemove the recipient The user's privacy settings don't allow this USER_PRIVACY_RESTRICTEDThe person doesn't allow strangers to write to or invite them Empty message text and no media EMPTY_MESSAGEFill in the text; for the Templates type see Texts and templates Message too long MESSAGE_TOO_LONGUp to 4096 characters in a message, up to 1024 in a media caption … can't be sent in this chat (photos, videos, files, voice messages, round videos, media, text) CHAT_SEND_…_FORBIDDENThe chat forbids this type of message — remove the attachment or the target Slow mode is active — wait before sending SLOWMODE_ACTIVEThe group has slow mode on — increase the delay The action requires a Telegram Premium subscription PREMIUM_REQUIREDThe action is available only to accounts with Premium This reaction is not allowed in this chat REACTION_INVALIDChoose a reaction from those allowed in the chat — Reactions Booster
Message Code What to do Telegram rate limit — retry after a pause RATE_LIMITEDThis is a FloodWait: the brackets show how long to wait, and after the brackets whether the account stopped or is waiting (setting ). Increase the delays, reduce the volume Telegram restricted the account for spam PEER_FLOODSpam block — stop this account's mass actions The account is a member of too many channels and groups CHANNELS_TOO_MUCHThe limit is 500 — unsubscribe the account from extra ones
Details in Telegram limits .
Message Code What to do This username is already taken USERNAME_OCCUPIEDChoose another one Invalid username USERNAME_INVALIDLatin letters, digits, _, 5–32 characters, starts with a letter
Message Code What to do User is already in the chat USER_ALREADY_PARTICIPANTNothing — it is skipped The chat has reached its member limit USERS_TOO_MUCHThe chat is full The user is a member of too many channels and groups USER_CHANNELS_TOO_MUCHThis user can't be invited The user can only be added from mutual contacts USER_NOT_MUTUAL_CONTACTThe user's privacy restriction The user was removed from the chat and can't be brought back USER_KICKEDThey were removed — they can't be invited The user's account is deleted INPUT_USER_DEACTIVATEDRemove them from the audience No users could be resolved NO_RESOLVABLE_USERSCheck the audience format
Message Code What to do The operation timed out TIMEOUTA slow network or proxy — try again The network request failed REQUEST_FAILEDCheck the internet connection and the proxy Request to an external provider failed PROVIDER_ERRORAn external service (SMS, email, AI) answered with an error — check the key and balance File operation error FILE_ERRORThe file is missing or there is no access to the folder Database operation error DB_ERRORCheck the database file and the folder The Telegram action failed TELEGRAM_ACTION_ERRORA general error — try again later Unhandled error UNKNOWN_ERRORIf it happens again, contact support with the text of the line
Auto Registration — the reasons after "Registration failed: …" are explained on the
Auto Registration page.
Mass actions — the reasons are in the action window: Mass actions .
AI in modes — "AI is unavailable: …": AI in Multogram .
Message What to do AI credits for this period are used up Wait for the next period to start The assistant is handling other requests right now Try again in a moment The message is longer than your plan allows Shorten the message This capability is not part of your plan The assistant's actions are available on Pro and Max Sign in to use the assistant Sign in to your Multogram account Can't reach the server Check the internet connection
Message What to do You have opened the maximum number of tickets for today Reply in an existing ticket on the website Enter a ticket subject — at least 3 characters Lengthen the subject The subject or description exceeds the allowed length Subject up to 160, description up to 10,000 characters Session ended Sign in again and send the ticket again
Updated October 5, 2026
Didn't find the answer?
Ask the assistant in the app — the button in the bottom-right corner of the window — or open a support ticket. The reply arrives in your account, under Tickets.