Hi Ludek,
Thanks for your response.
Please find the attached xamlCode file for code which I am using in my WPF application. I created same piece of another file with different name. When I switch these pages through application then application gets crashed. In .cs file I have not written extra code, only default code is there.
For version you can refer attached VersionInfo.png image.
Please let me know if you need any other information from my side to solve this issue.
Regards,
Ravi