this is regarding build 63, as forge 1141 is not yet recommended, and i'm not updating forge past recommended versions. Changelog does show some changes in 64 how recipes are handled, so it may fixed with that, i'm unable to test.

not an actual error, doesn't affect anything, just a couple lines showing in my log that indicate you may want to change something if you haven't.

log shows:

[21:30:51] [Client thread/INFO]: Unknown recipe class! vazkii.botania.common.crafting.recipe.CompositeLensRecipe Modder please refer to net.minecraftforge.oredict.RecipeSorter
[21:30:51] [Client thread/INFO]: Unknown recipe class! vazkii.botania.common.crafting.recipe.ManaGunLensRecipe Modder please refer to net.minecraftforge.oredict.RecipeSorter

(I'm going through my mods 1 by 1 to find their little extraneous messages so i can identify real issues a little more easily)

This doesn't break anything but sure, I'll have a look.