The problem is:
File: wplms/includes/init.php
Line: 1011
array(
'name' => 'Revolution Slider', // The plugin name
'slug' => 'RevolutionSlider', // The plugin slug (typically the folder name)
'source' => VIBE_URL . '/plugins/revslider.zip', // The plugin source
'required' => false, // If false, the plugin is only 'recommended' instead of required
'version' => '', // E.g. 1.0.0. If set, the active plugin must be this version or higher, otherwise a notice is presented
'force_activation' => false, // If true, plugin is activated upon theme activation and cannot be deactivated until theme switch
'force_deactivation' => true, // If true, plugin is deactivated upon theme switch, useful for theme-specific plugins
'external_url' => '', // If set, overrides default API URL and points to an external URL
),
The slug is not correct:
RevolutionSlider
The correct is:
revslider