Enable component p: dialog in pop-up window, primefaces

Greetings, I am working on primefaces, but at the moment of showing a popup window it is disabled to be able to perform any activity on the information that is displayed on it. I enclose the screenshot.

and this is the code of the pop-up window:

<?xml version='1.0' encoding='UTF-8' ?>

<ui:composition>
    <p:dialog header="Cuestionario resuelto" widgetVar="dlgTestResuelto" modal="true" 
              width="85%" closable="true" resizable="false" showEffect="clip" hideEffect="fold" 
              appendTo="@(body)">  
        <br/>
        <h:form id="frmTestResuelto">
            <h:panelGroup id="display">
                <p:dataTable id="datosLSI">
                        ...
                        ...
                        ...
                </p:dataTable>
                <p:commandButton value="Salir" onclick="PF('dlgTestResuelto').hide()" type="reset"/>
            </h:panelGroup>
        </h:form>
    </p:dialog>
</ui:composition>

For the help you can give me, I am grateful.