PTGui Pro 13.7 not able to install on MacStudio macOS Sequoia 15.7.4

[Gundolf Pfotenhauer]

I recently purchased ptgui pro 13.7 update. i had before PTGgui pro 12.24. i am not able to install the new PTGui version. my system is mac studio, sequoia 15.7.4.

I get the following error message:

filesystem error: in create_directory: Permission denied [*/Applications/ PTGui.app"] ["/Volumes/PTGui install disk/PTGui.app"]