I have a page in which I have a div. The content from that div is being populated by an includes page, and that includes page is making a call to a database to retrieve content
The jQuery .click event is not a live event, so it will only make items it has been assigned to clickable. Once those items are refreshed, removed or new items come in, the refreshed items won't have the click event and new items won't have the click event.
You'll want to use the jQuery .on event, which is the replacement for the .live event. That way when the contents refresh, they'll still have a click event attached.
The other option is to assign the click event whenever the content refreshes.