title: Google Apps Script: "Error 401: deleted_client The OAuth client was deleted" All of a sudden?
body: <p>I currently use a Google App Scripts on Google Sheets for my budgeting spreadsheet. Essentially, the way I have it set up is:</p>
  <ol>
  <li>Buy item</li>
  <li>Input expense onto Google form (which feeds into a spreadsheet)</li>
  <li>Use Apps scripts to convert timestamp into yyyy-MM-dd</li>
  </ol>
  <p>I've been using this process for 4 years but all of a sudden, today it stopped working by giving me this error below.</p>
  <blockquote>
  <p>Error 401: deleted_client The OAuth client was deleted</p>
  </blockquote>
  <p><img src="https://i.stack.imgur.com/izOkP.png" alt="Error 401: deleted_client The OAuth client was deleted" /></p>
  <p>Here's my app script:<br />
  <img src="https://i.stack.imgur.com/A4mgF.png" alt="Here's my app script" /></p>
  <p>Here's my trigger:<br />
  <img src="https://i.stack.imgur.com/y3qQG.png" alt="Here's my trigger" /></p>