Cubase 8.40 not loading Plugs

Tried opening a project after not working for a few days.
For some reason some of the plugs used in the project are not opening. Additionally, i cant open any new plugs from a large variety of companies. Plugs are opening fine on a new project.

Ideas?

Use this tool to confirm if it is the known issue of Windows FLS slot limits.
https://www.steinberg.net/forums/viewtopic.php?f=250&t=134715&hilit=fls+slots

More info
https://www.steinberg.net/forums/viewtopic.php?t=117510
https://www.steinberg.net/forums/viewtopic.php?t=123768
https://www.steinberg.net/forums/viewtopic.php?t=109766
https://www.steinberg.net/forums/viewtopic.php?t=138466