The repair option should be available when you right-click Rhino in the Windows
Control Panel > Programs > Programs and Features list and pick
That was going to be my next question. I assume that they work as expected when you search for them and put them on the canvas? Like, for example, the Unit X (vector) that I see is missing from your ribbon?
How is that search box different from the one in your previous post?
At any rate, I would recommend trying to isolate the issue by disabling non-standard plug-ins.
You can do this by restarting Rhino and then running the GrasshopperLoadOneByOne command.
Start with only allowing standard Grasshopper parts. If that works, try allowing one plug-in at a time.