Repair loading errors when launching grasshopper?

how can I fix this errors that prevent grasshopper to load ?

Hi -
If you can’t tell by the names in that list which plug-in is failing, you can either move all Grasshopper plug-ins to a different folder and place them back one-by-one or you could use the GrasshopperLoadOneByOne command and be selective about which plug-ins are allowed to load. Trial and error until you’ve found the culprit.
-wim