Gemini API Error 429 Resource Exhausted PI usage shows “No data”, even though I definitely made API calls about two weeks ago

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I’m experiencing the same issue. My free-tier API key for Gemini worked fine for a while, but a week ago I started getting the following error:

google.genai.errors.ClientError: 429 RESOURCE_EXHAUSTED. {'error': {'code': 429, 'message': 'You exceeded your current quota, please check your plan and billing details. For more information on this error, head to: https://ai.google.dev/gemini-api/docs/rate-limits. To monitor your current usage, head to: https://ai.dev/usage?tab=rate-limit.', 'status': 'RESOURCE_EXHAUSTED'}} 

Even after waiting for a week, the same error still occurs when I call the API again.

In AI Studio, the “Past 90 days” API usage shows “No data”, even though I definitely made API calls about two weeks ago.

Has my API key been restricted or suspended by Gemini?

Nobody know this? Seems that my free tier API has something wrong.