I had this too. I fixed it by changing mod locally.
Steps:
Go to AppData\Roaming\Factorio\mods
Unzip the mod (vanilla_galore_continued_1.2.4.zip
)
Inside the mod folders, there's another folder called 'mods'. Open that and open the bobs.lua file.
Replace recipe.category = "bob-electronics"
with recipe.category = "electronics"
Delete or move the original vanilla galore mod zip up one directory.
Next, you re-zip the files you had modified. So zip the folder vanilla_galore_continued_1.2.4
which has mods in it, and move it to the 'factorio/mods' directory if it's not there already.
And then it should work again.