WPF Desktop App Enhancement – Bug Fix + Feature Update (C# .NET)

I’m looking for an experienced C#/.NET developer to help with a small WPF desktop application. The project is already partially completed. I need help with bug fixing and adding a few features. (Budget: $30 - $250 CAD, Jobs: .NET, .NET 5.0/6, .NET Core, C# Programming, Desktop Application, Microsoft SQL Server, Software Development, WPF)