Debug and modify javascript plugin

Hello, I have a JS plugin that uses jQuery, bootstrap and HTML5 to allow users to upload images on a webpage, crop them, and then download them. I require two services: 1) There are slight issues with how the image is currently displaying, I would like you to determine where the conflict is and fix it. 2) In addition to the 'download' button already on the script, I would like to add two social share buttons for facebook and twitter. The images are saved to the server already so it's simply a matter of creating the buttons and share links. This is the script documentation: [login to view URL] I have the js and css and bootstrap files already uploaded and properly enqueued into a wordpress page. I have attached the js file and php file for the script for your reference. If you need clarification on any of my requests, please message me.