Preload not working

Hi.
i’m unsing wpsc but i have problems with preload!
if i run wp_cache_full_preload_hook from cron process i receive this log:

15:53:11 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 wp_cache_get_cookies_values: return:
15:53:11 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 wp_cache_check_mobile: https://www.MYSITE.com443
15:53:11 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 In WP Cache Phase 2
15:53:11 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 Setting up WordPress actions
15:53:11 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 Supercache caching disabled. Only using wp-cache. Non empty GET request. {“wph-throw-404″:””}
15:53:11 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 Created output buffer
15:53:12 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 Not caching POST request.
15:53:12 3799959 /wp_main/wp-cron.php?doing_wp_cron=1539877991.5512518882751464843750 wp_cache_maybe_dynamic: returned $buffer

Can you explaim me the problem?
thanks a lot

PS. my wp is inb /wp_main/ dir