Updated to Adorn v1.14 and running the latest version of Terrestria, and it seems Adorn is trying to add recipes relating to terrestria:mossy_basalt_slab and a number of other "Mossy Basalt" items. I can't seem to find any of these in the Terrestria codebase, however. Is it possible you're thinking of terrestria:mossy_basalt_cobblestone_slab etc?

Never mind, just noticed that this seems to be fixed in your most recent commit, just not released yet.