Ok, I see. Problem is caused by “Content Views” (not sure if it is called exactly like that in your dashboard) plugin as it is also using Bootstrap, so there are two Bootstrap files loaded and are conflicting. It is basically the same why Easy Bootstrap Shortcodes had to be configured to avoid duplicate Bootstrap files.
Make sure if this plugin have an option to disable Bootstrap loading and use one include with theme. If there are no such option you can either comment it out form plugin code or from theme functions.php file. If you don’t know how to do it, please let me know which option you prefer and I will guide you through.