The problem occurred when I was using a Python program to upload videos to YouTube. I did not use it to upload for many days before this happened so it should not exceed the quota. I tried many times and it had the same error.
The following is the error:
[RequestError] Server response:
{"error": {"code": 403,"message": "The request cannot be completed because you have exceeded your \u003ca href=\"/youtube/v3/getting-started#quota\"\u003equota\u003c/a\u003e.","errors": [ {"message": "The request cannot be completed because you have exceeded your \u003ca href=\"/youtube/v3/getting-started#quota\"\u003equota\u003c/a\u003e.","domain": "youtube.quota","reason": "quotaExceeded","debugInfo": "Code: 8; Description: ?metric=youtube.googleapis.com/default&limit=defaultPerDayPerProject&qs_error_code=INSUFFICIENT_TOKENS" } ] }}