Troubleshoot Software/API Access Issue (Crash Issue Fix Needed)

I have an existing link to software/API that contains everything I need, but I'm unable to open it as it crashes each time. I need a freelancer to troubleshoot and fix this issue for me. The goal is to restore proper access without additional purchases or installations... (Budget: $125 - $250 USD, Jobs: .NET, C# Programming, MySQL, PHP, Software Architecture)