FYI - I replied with same below to Jace Nelson's post:
Yes, I can confirm also. All of our tool calls are disconnected. Calendars are disconnected. There's also some assistants that are completely gone, meaning deleted. And then also, some knowledge bases are completely gone. Hopefully is fixing now. Fingers crossed you have a backup that you can reinstate..... Knowing you, you're probably already working on it (hopefully).