See attached. This is one of our top level members. Do you have any clue why she would not be alloMwed to respond to a personal message? Thanks.
Please read wpForo PM documentation. There are antispam options to prevent new registered users write a message. You can decrease the minimum number of posts user must have to be permitted to write PM. More info in doc:
For farther support please use wpForo Addons Support forum here: