I created a bug report in Prominence II here: https://github.com/nvb-uy/ProminenceII-HasturianEra/issues/51
The bug was closed due the "the way Botania bows are made not using the ranged weapon api"
I really love the Botania bows, and would like to have them as an option in Promnince II, however, I suspect they need to be modernized before the Prominence II team can bring them up to par.