Fatal error: Uncaught Error: [] operator not supported for strings in /lucjamadziar/wp-content/plugins/revslider/includes/framework/base-admin.class.php:71
Stack trace:
#0 /lucjamadziar/wp-content/plugins/revslider/admin/revslider-admin.class.php(572): RevSliderBaseAdmin::addMetaBox('Revolution Slid...', '', Array, NULL)
#1 /lucjamadziar/wp-content/plugins/revslider/admin/revslider-admin.class.php(73): RevSliderAdmin->addSliderMetaBox()
#2 /lucjamadziar/wp-content/plugins/revslider/admin/revslider-admin.class.php(44): RevSliderAdmin->init()
#3 /lucjamadziar/wp-content/plugins/revslider/revslider.php(162): RevSliderAdmin->__construct('/lucjamadziar/w...')
#4 /lucjamadziar/wp-settings.php(254): include_once('/lucjamadziar/w...')
#5 /lucjamadziar/wp-config.php(92): require_once('/lucjamadziar/w...')
#6 /lucjamadziar/wp-load.php(37): require_once('/lucjamadziar/w...')
#7 /lucjamadziar/wp-admin/admin-ajax.php(22): require_once('/lucjamadziar/w...')
#8 {main}
thrown in /lucjamadziar/wp-content/plugins/revslider/includes/framework/base-admin.class.php on line 71