I have updated the theme, but the image is blank when I try to post the link on Facebook and other social media platforms.
I didn't make any changes in this part. Hoping for some answers.
The store is https://avhdirect.com.au/
You have to clear Facebook cache with Facebook Debugger. More Info: https://support.seo-product-optimizer.com/article/56-how-can-i-check-the-page-with-facebook-debugger