Please visit this link: in footer you can see "online payment", If I click on "online payment", it should go to some page, means if I click on "online payment", it should open some page with some text.
Let me know if you have any queries.
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It's not opening any page because it has a blank link. I'm not sure how you have set your footer up, put the links within it, should be pulled from the menu manager.
In your menu manager, there will most likely be a menu called "footer". Open it and you will see the desired menu item. Open that then you can set the type to whatever you wish.
If you set the type to something such as a Single Article, then be sure to actually define that article.
Hope this helps