Content generator response error - You exceeded your current quota, please check your plan and billing details

Problem/Motivation

Response Result -
Client error: `POST https://api.openai.com/v1/chat/completions` resulted in a `429 Too Many Requests` response: { "error": { "message": "You exceeded your current quota, please check your plan and billing details.", (truncated...)

Steps to reproduce

Configured Open AI setting -
Select GPT Model Version - GPT-3
GPT-3 API Model - text-davinci-002 / also checked text-davinci-003
OpenAI API Access Token - Added from API
OpenAI API Max Token - 500
Choose Content types for AI assistance - Article

Generate content using ChatGPT - Returns
Client error: `POST https://api.openai.com/v1/chat/completions` resulted in a `429 Too Many Requests`