Why was anne hutchinson tried by the general court of massachusetts bay?

In 1637, Anne Hutchinson was put on trial by the General Court of Massachusetts Bay for her blasphemous claims or disagreement with the teaching of the Anglican church. Anne practiced the beliefs of the Puritan faith. After a two day trial by the General Court of Massachusetts Bay a guilty verdict was delivered and Anne was exiled.  

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories