Easy Google Font not working

Hi, Support,

I have just installed Easy Google Font, there is “Typography” added on Customize bar but when I tried to change, it won’t let me. Please see attached.
Is there anything else I need to do to make it work?

Or alternatively, codes to overwrite fonts for headers would be great, too!

Thanks, much appreciated!

Hello there,

I hope you are doing well today.

What specific header are you trying to change? Also, please provide a link to your website so that I can inspect it?

Best Regards,
Support

Hello!
Thank you so much for your reply, much appreciated!

OK, in post, I used h3 and it works with Easy Google Font but when I publish it, something goes wrong.
Also, I would like to change the big heading as well, please see the attached.
And since we are on this, there is a possibility that I would like to use other headings and want to change them as well, on both posts and pages.

Please kindly advise.

Thank you so much!!

Hi there,
Thanks for keeping in touch.
In that case, I would suggest on clearing your site cache and try carrying out the changes. Also, please provide us with a link to your site so that we can have a look into this.

I look forward to you reply.
Best Regards,
Support.