runtime error

Space failed to start. Exit code: 1. Reason: INFO:matplotlib.font_manager:generated new fontManager Traceback (most recent call last): File "app.py", line 7, in <module> os.environ["OPENAI_API_KEY"] = os.environ["OPENAI_API_KEY"] File "/usr/local/lib/python3.8/os.py", line 675, in __getitem__ raise KeyError(key) from None KeyError: 'OPENAI_API_KEY'

Container logs: