An unexpected application exception has occurred.

A component event handler method returned the value Block[blockEnviarDatosPorMail within Login, at classpath:com/martinaditrento/imartina/pedidos/pages/Login.tml, line 123]. Return type org.apache.tapestry5.internal.structure.BlockImpl can not be handled. Configured return types are java.lang.Class, java.lang.String, java.net.URL, org.apache.tapestry5.Link, org.apache.tapestry5.StreamResponse, org.apache.tapestry5.runtime.Component.