Warning: Array to string conversion in /var/www/html/public/wp-includes/default-constants.php on line 304

Fatal error: Uncaught TypeError: trim(): Argument #1 ($string) must be of type string, array given in /var/www/html/public/wp-includes/link-template.php:3932
Stack trace:
#0 /var/www/html/public/wp-includes/link-template.php(3932): trim(Array)
#1 /var/www/html/public/wp-includes/link-template.php(3470): set_url_scheme(Array, 'https')
#2 /var/www/html/public/wp-includes/link-template.php(3433): get_home_url(NULL, '/wp-sitemap.xsl', 'https')
#3 /var/www/html/public/wp-includes/sitemaps/class-wp-sitemaps-renderer.php(68): home_url('/wp-sitemap.xsl')
#4 /var/www/html/public/wp-includes/sitemaps/class-wp-sitemaps-renderer.php(43): WP_Sitemaps_Renderer->get_sitemap_stylesheet_url()
#5 /var/www/html/public/wp-includes/sitemaps/class-wp-sitemaps.php(53): WP_Sitemaps_Renderer->__construct()
#6 /var/www/html/public/wp-includes/sitemaps.php(27): WP_Sitemaps->__construct()
#7 /var/www/html/public/wp-includes/class-wp-hook.php(324): wp_sitemaps_get_server('')
#8 /var/www/html/public/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#9 /var/www/html/public/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#10 /var/www/html/public/wp-settings.php(727): do_action('init')
#11 /var/www/html/wp-config.php(121): require_once('/var/www/html/p...')
#12 /var/www/html/public/wp-load.php(55): require_once('/var/www/html/w...')
#13 /var/www/html/public/wp-blog-header.php(13): require_once('/var/www/html/p...')
#14 /var/www/html/public/index.php(17): require('/var/www/html/p...')
#15 {main}
  thrown in /var/www/html/public/wp-includes/link-template.php on line 3932