If you are familiar with WordPress plugins, there is a good chance that you may have mixed feelings about them. Some plugins are easy to install and configurate, while others may cause problems because of their complicated settings. That being said, we still need to use plugins to optimize WordPress websites, so it is helpful to know how to troubleshoot plugins.   I recently installed a plugin that creates shortcodes to share files on my website from Box – a cloud content management and file sharing service. My friend found the plugin for me, and we initially made it work. However, for unknown reasons, it stopped working after several hours.…