GOOGLE AppScript Authorisation Error 401: deleted_client and show message "The OAuth client was deleted."when Sign in with google

I currently use a Google App Scripts on Google Sheets for my Seller Hike spreadsheet. Essentially, the way I have it set up is:

1. first i create project on Google cloud console.

2. enable google Sheet Api and configure with consent screen.

3. set Authorised JavaScript origin and Authorised redirect URIs (https://developers.google.com/oauthplayground).

4. open https://developers.google.com/oauthplayground for consent screen .

   • a) Open setting and paste client id and secret key. b) complete 3 step (i) select Select & authorize APIs. (ii) Exchange authorization code for tokens. (iii) Configure request to API.*

5. project number enter in google app script Project Setting .

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After follow these steps and process show authorisation error : 401 what is the solution of this Error ?