I just did what Marco Iannello did to fix the 'Let's fix it' issue where the sampler can't find the instrument. To reiterate; Opened up the Spitfire Audio plugin, selected the instruments, bottom ...
I'm also getting issues. Windows 10 Home user with Pro Tools 11. Tried multiple times to repair but and when I open it up in Pro Tools it promps me with the 'Let's fix it' popup.