Something is broken with the latest version

Hey mate, hope you are doing well. I was holding off from updating to the latest version because I had done customizations to the previous version that best fitted my environment, so I needed sometime to make sure all my customizations would be able to carry over after update.

However, when I removed my customized version and installed the latest, seems like the script stopped working all together and since my website is live I really can’t afford to keep it down for long, so I am in the process of reverting back to my custom version.

I was wondering if you had some way to do error checking or debugging included with the plugin that I could see what is going on exactly. The symptom I have is that nothing is displayed where images should be. There is no error or nothing, just blank output for the shortcode.

I checked the dirs and there is no error_log either, so I am not sure where to start troubleshooting and decided to ask you how you generally go about debugging errors with this plugin.

Thanks!