unable to view product on shop page after theme installl

after changing the theme our previously listed downloadable product are not able able to click and view
elementor is showing error You must call the-content’ function in the current template, in
order for Elementor to work on this page.

when click on product it shows empty
cant do the checkout process
here is the link

main Website http://www.ignougalaxy.in
Click here to replicate https://ignougalaxy.in/ignou-solved-assignment/
Click on any BA/BDP > Add any product to cart

Product Link https://ignougalaxy.in/product/bevae-181-english-assignments-solutions-pdf/