Fix C# Plugin from Crashing

Hi guys, Overview of the Application - It downloads a book from a server , which has pages. and each page can have another sub page or a parts list ( with an Image) . There is a software which opens this book . And i have got a plugin written by developer here and it is what i was expecting but there is a small problem to this. The Plugin has slight draw backs which is making the data extraction difficult for me and i need you to fix this plugin. I will provide you with the software + plugin source code . you are responsible for 1. Check whats causing the application crashes. - Have some screen shots + C# log . 2. Fix the code so that the application never crashes - If it has an issue on any page , it should check it and navigate to the next page. 3. There is a heavy ram using happening over 20-40 mins which is causing the extraction process slowed down. you will have to delete all the data in the buffer / history after every new book being open. I need this fixed this at the end of the day . please dont bid if you dont have enough time work on it today . Please dont bid if you haven't modified any C# plugins before. Vivek