C# debug job (URGENT!)

We need someone to help us debug an C# webcrawler application asap. The application is already build and have the correct features. But it has some bugs that result in exceptions in the log file. When debugged the application shall be able to run for more than a week without any threads hanging or major memory leaks. Currently it can run for approx. one hour before some threads hit big error and stop working. You must finish this application by start of next week. 1 - 2 days from now. The application is closed source, thus you must delete everything after job completed. See this video to understand the problem a little more: [login to view URL] (5 Mb) We expect the job will take a skilled C# programmer 2 - 10 hours to fix. We was planning to do it in house, but we simply don't have any availeble programmers at the moment.