There is an error in Revslider after Update:
Settings (slider_settings) Error: Duplicate setting name:position
#0 …httpdocs/de/wp-content/plugins/revslider/inc_php/framework/settings.class.php(358): UniteSettingsRev->add(‘position’, ‘center’, ‘Position on the…’, ‘list’, Array)
#1 …/httpdocs/de/wp-content/plugins/revslider/inc_php/framework/settings.class.php(720): UniteSettingsRev->addSelect(‘position’, Array, ‘Position on the…’, ‘center’, Array)
#2 …/httpdocs/de/wp-content/plugins/revslider/settings/slider_settings.php(40): UniteSettingsRev->loadXMLFile(‘/var/www/vhosts…’)
#3 …/httpdocs/de/wp-content/plugins/revslider/inc_php/framework/base_admin.class.php(220): require(‘/var/www/vhosts…’)
#4 …/httpdocs/de/wp-content/plugins/revslider/revslider_admin.php(141): UniteBaseAdminClassRev::requireSettings(‘slider_settings’)
#5 [internal function]: RevSliderAdmin->adminPages(”)
#6 …/httpdocs/de/wp-includes/plugin.php(406): call_user_func_array(Array, Array)
#7 …/httpdocs/de/wp-admin/admin.php(149): do_action(‘toplevel_page_r…’)
#8 {main}