Too many requests. Try again later.

Too many requests. Try again later.
Your device or network has sent too many requests in a short amount of time. Please try again later.

I get this message when i post in OTD forums.
Wondering why

i also get this

I received this message a couple of days ago.

That means you made too many forum posts or edits in a short amount of time and now have to wait before you can edit or post again.

Do you use Lichess Tools extension?

If they had, they would have seen the "Lichess thinks we're overloading their system" message.