The following error occurred.Can you tell me why is this error?

[yang-1027]

You:
你是谁

Chatbot:
2023-02-26 20:11:20,915 - main - ERROR - ask - Field missing
NoneType: None
2023-02-26 20:11:20,915 - main - ERROR - ask - Rate limit exceeded
Traceback (most recent call last):
File "", line 198, in _run_module_as_main
File "", line 88, in _run_code
File "C:\Users\Yhh\AppData\Roaming\Python\Python311\site-packages\revChatGPT\V1.py", line 863, in
main(configure())
File "C:\Users\Yhh\AppData\Roaming\Python\Python311\site-packages\revChatGPT\V1.py", line 45, in wrapper
out = func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Yhh\AppData\Roaming\Python\Python311\site-packages\revChatGPT\V1.py", line 847, in main
for data in chatbot.ask(prompt):
File "C:\Users\Yhh\AppData\Roaming\Python\Python311\site-packages\revChatGPT\V1.py", line 390, in ask
raise Error(source="ask", message=line.get("detail"), code=2)

[HgLiJiahao]

rate limited看到了不