PenciDesign Supporter replied
Hi,
From Soledad version 8.0.7 - the plugin Penci PageSpeed Optimizer is not needed anymore ( we've included all new speed optimization features inside the "Penci Shortcodes & Performance" plugin ). So, please install the use it via Appearance → Install Plugins → select and install the Penci Shortcodes & Performance plugin.
Regards,
PenciDesign.