Breadcrumb – not showing the blog post trail on the website.

Hi there
I have a website where I am using your breadcrumb which is working fine in all scenario except in blog page which shows the rite breadcrumbs when I am on the blog page posts listed altogether as shown in the url given below:

https://wp.sunmarkedubai.com/news-events/sunmarke-blog/

but when I click any of the blog post which takes me to another page for blog description then breadcrumbs are not working on that page which is shown as below URL example

https://wp.sunmarkedubai.com/news-events/sunmarke-blog/7-reasons-why-were-studying-the-ib-programme-at-sunmarke-school/

and its happening only with all the blog description page.

Kindly suggest what needs to be required to make it proper breadcrumbs url.

Thanks in advance.