Hi,
Please find following codes and remove them in /inc/functions/js_composer/js_composer.php file in Travelo theme.
vc_remove_element("vc_widget_sidebar");
vc_remove_element("vc_wp_search");
vc_remove_element("vc_wp_meta");
vc_remove_element("vc_wp_recentcomments");
vc_remove_element("vc_wp_calendar");
vc_remove_element("vc_wp_pages");
vc_remove_element("vc_wp_tagcloud");
vc_remove_element("vc_wp_custommenu");
vc_remove_element("vc_wp_text");
vc_remove_element("vc_wp_posts");
vc_remove_element("vc_wp_links");
vc_remove_element("vc_wp_categories");
vc_remove_element("vc_wp_archives");
vc_remove_element("vc_wp_rss");
vc_remove_element("vc_gallery");
vc_remove_element("vc_teaser_grid");
// vc_remove_element("vc_btn");
vc_remove_element("vc_cta_button");
vc_remove_element("vc_posts_grid");
vc_remove_element("vc_images_carousel");
vc_remove_element("vc_posts_slider");
vc_remove_element("vc_carousel");
vc_remove_element("vc_message");
vc_remove_element("vc_progress_bar");
Regards, C-Themes
Since version 5.8 of WordPress, WordPress has changed the interface of the Widget section phrazle to Block for more intuitive editing. But some cases are incompatibility, conflict or you are not used to using this block weaver wordle interface.