Missing field “image” > Merchant Listing > “1 invalid item detected” on Google Search Console

Would greatly appreciate it if anyone can assist and advise further on how to fix the issue below. This relates to the website: www.mobilecablestore.com that is running on the purchase Shopify Theme: Stockmart.

I am encountering the below error message on Google Search Console for the indexing on almost all the Merchant Listing under www.mobilecablestore.com, that is categorized as a critical error / warning message. It says Merchant Listing > “1 invalid item detected” > Missing field “image”. The same image is shown below for easy reference.

  1. Is this an issue relating to the structured data / schema that fail to present the image field correctly?
  2. If yes, this is a structured data / schema issue, can it be fixed at my end or I must escalate this back to the Shopify Theme Developer for Stockmart?

Thank you for your generous help!

I have the same problem on my site. Keen to know if anyone had a solution for this.