"The topic or board you are looking for appears to be either missing or off limits to you." I understand the first part, but the second part, "off limits to you," got me thinking.
Why are you creating such a shit topic about this error message using Telegram notification bot?
I haven't encountered anything like this since I registered on the forum. Or are the administrators planning for a time when there will be certain topics that would be restricted to some users?
Do not be such naive! If you have been using the Telegram notifier for a long time which I think you have been doing, such messages are common when a mod deletes a topic. I am not sure why you as high high-ranking member of the forum think his spamming the Meta board will not be questioned.
You could have asked this question on this thread rather than spamming the board.
[TELEGRAM] Yet Another BitcoinTalk Notification BOT (merits, mentions, topics,+).
It is time that you should look back on your replies and your topics. If not then I can help you.