Fatal error: Uncaught Error: Call to undefined function wp_generate_password() in /wp-admin/includes/file.php:185 Stack trace: #0 /wp-admin/includes/class-wp-filesystem-ftpext.php(116): wp_tempnam('/wp-content/plu...') #1 /wp-content/plugins/responsive-menu/v4.0.0/inc/classes/class-theme-manager.php(831): WP_Filesystem_FTPext->get_contents('/wp-content/plu...') #2 /wp-content/plugins/responsive-menu/responsive-menu.php(177): RMP\Features\Inc\Theme_Manager->get_theme_index_file('Electric blue t...') #3 /wp-content/plugins/responsive-menu/responsive-menu.php(185): rm_includes_menu_theme_template() #4 /wp-settings.php(273): include_once('/wp-content/plu...') #5 /wp-config.php(92): require_once('/wp-settings.ph...') #6 /wp-load.php(39): require_once('/wp-config.php') #7 /wp-blog-header.php(13): require_once('/wp-load.php') #8 /index.php(17): require('/wp-blog-header...') #9 {main} thrown in /wp-admin/includes/file.php on line 185