Repair/Fix a C# application and optimize

We are currently running an account creator for an online game consisting of two tools to perform these tasks: 1. First tool makes a copy of a Master Virtual Machine and runs the copy in VMWare Workstation 12 2. Within the VM the second tool opens a OVPN connection, opens browsers (we currently use Chrome, Firefox and Opera) and creates accounts within them together with a paid captcha solving service. Both tools get their data from a remote existing MySQL server and write data back to report sucessful creation of the accounts. First tool has a GUI to add pathes and select some options. Sadly our developer of these tools is no longer reachable and several bugs appeared. We are looking for someone to go through the code (C# in Visual Studio Project) of both tools and to remove the errors. Also we want to take the chance to optimize the code, the freelancer should check if he can improve performance and stability. We can pay bonus for a good improvement. Current bugs are: 1. The tools create accounts in different regions of the world with different URL, but two of the regions do not work, perhaps a change in the html code of the publishers page 2. If a OVPN connection cannot be established, the tool stops and needs manual intervention 3. One of the browsers (Opera) always crushes without creating an account 4. Several minor issues, like wrong program icon The freelancer will need to have: - Visual Studio 2015 - VMWare Workstation 12 (trial version should be sufficient) - OVPN Client - (removed by freelancer.com admin) Teamviewer for a fast communication We can communicate in German, Spanish and English. If none of these is your native language we expect a high level english. Our last dev had massive language issues and was not able to communicate properly enough. edit: Please calculate your bidding price based on the bug fixing, as mentioned above we would pay bonus for improvements / optimization.