The ability "tree feller", of the mcmmo plugin, has been disabled, my suggestion is to enable it back For those who didn't know, tree feller allows to chop down trees by breaking one block of it. Credit to @Ertuiop for creating original suggestion. (It was locked and I want this so I made it again :c)
Support, Tree Feller Would Add A Whole New Aspect To The Game In The Form Of Mining Wood. This Could Also Help Bring Back Prisons Which Unfortunately Has Been Quite Dead For Some Time Now.