Fix Gmail API Display Issue on Website

My Gmail API is not displaying on my website, despite everything being set up.

- I am encountering an API response issue.
- I haven't checked the console or logs yet.
- I need assistance in identifying error messages and troubleshooting.

Ideal skills and experience include:
- Proficient in JavaScript and Google APIs
- Strong problem-solving skills
- Experience with console and log analysis
- Ability to communicate technical issues in simple terms.