Welcome to techIMO.
Uninstall it and reinstall the whole program.
There is no file named psuite.exe in that software installation. I just went through mine.
Even if there were we could not send you that file and it's against forum rules to ask for copyrighted software here.
I am removing your email address for security.
But what we can do is help you figure out what the problem is so you can get your software installed.
What version is it? 4 or 5.