The Archives Widget isn’t working for me. As you can see from the screenshot attached, I should have 4 December articles on the page, but none are showing up. What is going wrong?
Child theme inherits or overwrite the templates of parent theme. Customizing parent theme is bad practice so we request you to place above file on child theme root folder
Go to site folder -> wp-content->themes->lavish-pro-child-> here you need to place given file.
To know more on this please see this tutorial: