Fatal error: Uncaught TypeError: parse_url(): Argument #1 ($url) must be of type string, array given in /var/www/html/wp-content/plugins/multilang/includes/permalink/urls.php:66
Stack trace:
#0 /var/www/html/wp-content/plugins/multilang/includes/permalink/urls.php(66): parse_url(Array)
#1 /var/www/html/wp-content/plugins/multilang/includes/permalink/urls.php(96): multilangual_add_language_prefix_to_permalink(Array, Object(WP_Post))
#2 /var/www/html/wp-includes/class-wp-hook.php(326): multilangual_modify_sitemap_urls(Array, Object(WP_Post))
#3 /var/www/html/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array)
#4 /var/www/html/wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php(164): apply_filters('wp_sitemaps_pos...', Array, Object(WP_Post), 'page')
#5 /var/www/html/wp-includes/sitemaps/class-wp-sitemaps.php(208): WP_Sitemaps_Posts->get_url_list(1, 'page')
#6 /var/www/html/wp-includes/class-wp-hook.php(324): WP_Sitemaps->render_sitemaps('')
#7 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#8 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#9 /var/www/html/wp-includes/template-loader.php(13): do_action('template_redire...')
#10 /var/www/html/wp-blog-header.php(19): require_once('/var/www/html/w...')
#11 /var/www/html/index.php(17): require('/var/www/html/w...')
#12 {main}
  thrown in /var/www/html/wp-content/plugins/multilang/includes/permalink/urls.php on line 66