Chat since. Fb support is not available or is it a glitch?

Question

Facebook

Task:
Restore access to the Instagram account, there is access to the Facebook business page for the store

Problem:
I'm trying to contact technical support. support for Facebook, but I (in any browser) get the following error (when clicking on the "Start Chat" button):



At the same time, on the page preceding the page for applying for a chat, it is written that the estimated waiting time for a tech. support is 15 minutes. When the page is refreshed, the information about the waiting time changes

>>> therefore, someone uses this chat for consultations and they have no problems

Question:
Is this a website glitch? What could be the problem? How to solve the problem?