Our website was working properly for a year or more and everything was fine.
One of our customer told that when they click the menu and try to open subpages which are our collections a blank page start coming . you may find the picture what is look like : https://prnt.sc/p2_IANIp2lvm
at home page the collections works fine but not when call them like
https://kampguru.com/collections/test-collection
is there any possible answer to save our day ?
@pete has solved the issue with his suggestion. The problem was the widget we have used to filter collections. We converted collections.liquid page as it should be by commenting the widget and problem solved.