How is it possible to receive an ERROR 429 when using Discord and OpenAI, despite not using the OpenAI API key?

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It is possible to receive an ERROR 429 when using Discord and OpenAI if the application is sending too many requests to the OpenAI servers, leading to a rate limiting response. This can happen even if the application is not using the OpenAI API key directly, as some functions or libraries may be making requests to the OpenAI servers in the background. To resolve this issue, the application should implement a rate limiting mechanism to control the number of requests being made, or try reducing the frequency or volume of requests being sent.