Android Question error when pressing the backspace key (solved)

java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean
at com.urbanleopard.spazapp.main$HandleKeyDelayed.runDirectly(main.java:224)
at com.urbanleopard.spazapp.main.onKeyDown(main.java:211)

Please help. This happens every time I press backspace in the app. It never used to.