PMS seemingly not installed all of a sudden?

So I have PMS set up to do maintenance over night. Its been set up this way for literally years, problem free. I got up this morning and noticed that its not running in my tray so I attempted to start it manually.

I got the “this shortcut is invalid” type message. I opened explorer and checked program files (x86) (and program files for good measure) and low and behold my PMS folder is just… gone.

The appdata folder seems to still be there. It still shows as installed in programs & features/control panel.

Upon attempting to reinstall I get

any ideas whats going on?

Server Version#: 1.24.2.5000 (as per programs & features)
Player Version#:

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