AMP issue in my website

Hello Friends,
I’m owner of a service based company.
Recently came across an issue on webmaster that my site is facing AMP issue. Can anyone help me with it.
Here is the site .
Also, I’m sharing with you the screenshot.
Can anyone help in this how can i rectify it.

Hi there! Is it related to Vue Storefront? AS I’ve quickly checked your site it’s not based on VSF.
Anyway, this tool might be useful for you in order to fix the validation issues: https://validator.ampproject.org/