Fatal error: Uncaught Error: Call to undefined function _wp_http_get_object() in /home/www/wp2017_2/wp-includes/http.php:178
Stack trace:
#0 /home/www/wp2017_2/wp-includes/cron.php(729): wp_remote_post('https://sv-buer...', Array)
#1 /home/www/wp2017_2/wp-includes/cron.php(774): spawn_cron(1611349978.4081)
#2 /home/www/wp2017_2/wp-includes/class-wp-hook.php(287): wp_cron('')
#3 /home/www/wp2017_2/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#4 /home/www/wp2017_2/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#5 /home/www/wp2017_2/wp-settings.php(546): do_action('init')
#6 /home/www/wp2017_2/wp-config.php(122): require_once('/home/www/wp201...')
#7 /home/www/wp2017_2/wp-load.php(37): require_once('/home/www/wp201...')
#8 /home/www/wp2017_2/wp-blog-header.php(13): require_once('/home/www/wp201...')
#9 /home/www/wp2017_2/index.php(17): require('/home/www/wp201...')
#10 {main}
thrown in /home/www/wp2017_2/wp-includes/http.php on line 178