Notice revolution slider access

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Notice revolution slider access

I installed the XML sitemap module and has left me the following error. There are some incopatibilidad with this module?

Notice: Trying to get property of non-object en revolution_slider_access() (línea 154 de /home/comerzia/public_html/pruebas/asaja/sites/all/modules/revolution_slider/revolution_slider.module).

I want to install a module to share the contents of the blog in social networks, there is a module that is not compatible?