facebook - Action Blocked!

[Debugger]

I can't write on messenger or post!

"Action Blocked
You have been temporarily blocked from performing this action. "

I have checked the facebook security features, verified and NO changes have been made. Everything is fine.
Why does Facebook block write without specific reasons?
Thousands of users have the same problem!

Example:

https://www.youtube.com/watch?v=Co5GzNYUlhM

AND:

https://www.youtube.com/watch?v=l7AkyJiYjYM