Can't view pdf files anymore

[highup]

I get this screen warning when I click on any PDF file:
The second image is my plug in version.

 

[Ernesto]

That reminds me, I got an update to do, thanks.

 

[Nick]

Lot of people having problems with 9
Reader or Acrobat, or the resources they rely on could have been damaged.
Open Reader > Choose Help > Repair Adobe Reader Installation.
(Acrobat) Choose Help > Repair Acrobat Installation.
Let me know if that does it for you .