Who or what was Asherah?

Ellen White

Who is Asherah? What is asherah? The reference may be to a particular goddess, a class of goddess or a cult symbol used to represent the goddess. It is sometimes difficult to distinguish what meaning is intended (cf. Judges 3:7).

http://www.biblicalarchaeology.org/daily/ancient-cultures/ancient-israel/asherah-and-the-asherim-goddess-or-cult-symbol/