AMP page is valid with warnings

Hi team

I see the following error in my google search console

Can you kindly assist me with fixing this?

I have the official AMP plugin installed

AMP page is valid with warnings
It is eligible for some AMP-specific features in Google Search results, but is not fully compliant with AMP best practices.

AMP indexing - AMP version permits indexing ( THIS IS FINE)

Issues - Error in required structured data element (ERROR)

No code highlighting available for this issue

My AMP Settings is on Standard (Not transitional or Reader) - does this impact ?

Thanks