04-29 10:21:45.032 29222-29312/com.example.expresso1002 E/AndroidRuntime: FATAL EXCEPTION: Thread-14639
    java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
        at android.os.Handler.<init>(Handler.java:197)
        at android.os.Handler.<init>(Handler.java:111)
        at android.widget.Toast$TN.<init>(Toast.java:370)
        at android.widget.Toast.<init>(Toast.java:104)
        at android.widget.Toast.makeText(Toast.java:261)
        at com.example.expresso1002.fragmentos.sacEnvioEmail$2.run(sacEnvioEmail.java:139)
        at java.lang.Thread.run(Thread.java:841)
04-29 10:21:45.322 29222-29222/com.example.expresso1002 E/ViewRootImpl: sendUserActionEvent() mView == null
04-29 10:21:45.322 29222-29222/com.example.expresso1002 E/ViewRootImpl: sendUserActionEvent() mView == null