so wp super cache does not work, the test fail the time stamp changes

Now what exactly am I supposed to do?

here is some debug

20:56:53 29737 / wp_cache_get_cookies_values: return:  20:56:53 29737 / wp_cache_check_mobile: www.myappname.com443/ 20:56:53 29737 / supercache dir: /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/ 20:56:53 29737 / wp_cache_check_mobile: -https 20:56:53 29737 / No Super Cache file found for current URL: /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/index-https.html 20:56:53 29737 / wp_cache_get_cookies_values: return:  20:56:53 29737 / wp_cache_check_mobile: www.myappname.com443/ 20:56:53 29737 / In WP Cache Phase 2 20:56:53 29737 / Setting up WordPress actions 20:56:53 29737 / Created output buffer 20:56:53 29737 / wp_cache_get_cookies_values: return:  20:56:53 29737 / wpcache_do_rebuild: doing rebuild for /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/ 20:56:53 29737 / wpcache_do_rebuild: exiting as directory is not a directory: /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/ 15:56:54 29737 / Not caching POST request. 15:56:54 29737 / wp_cache_maybe_dynamic: returned $  buffer 20:57:08 824 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: /^wp-postpass_4bc15edf6395b84070b423105289c8ba|^comment_author_4bc15edf6395b84070b423105289c8ba|^wordpress_logged_in_4bc15edf6395b84070b423105289c8ba/ Cookie detected: wordpress_logged_in_4bc15edf6395b84070b423105289c8ba 20:57:08 824 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: b229195e77e3292429106a4191ead2ae 20:57:08 824 /wp-admin/admin-ajax.php wp_cache_check_mobile: www.myappname.com443b229195e77e3292429106a4191ead2ae 20:57:08 824 /wp-admin/admin-ajax.php In WP Cache Phase 2 20:57:08 824 /wp-admin/admin-ajax.php Setting up WordPress actions 20:57:08 824 /wp-admin/admin-ajax.php Not caching wp-admin requests. 20:57:11 29737 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: /^wp-postpass_4bc15edf6395b84070b423105289c8ba|^comment_author_4bc15edf6395b84070b423105289c8ba|^wordpress_logged_in_4bc15edf6395b84070b423105289c8ba/ Cookie detected: wordpress_logged_in_4bc15edf6395b84070b423105289c8ba 20:57:11 29737 /wp-admin/admin-ajax.php wp_cache_get_cookies_values: return: b229195e77e3292429106a4191ead2ae 20:57:11 29737 /wp-admin/admin-ajax.php wp_cache_check_mobile: www.myappname.com443b229195e77e3292429106a4191ead2ae 20:57:11 29737 /wp-admin/admin-ajax.php In WP Cache Phase 2 20:57:11 29737 /wp-admin/admin-ajax.php Setting up WordPress actions 20:57:11 29737 /wp-admin/admin-ajax.php Not caching wp-admin requests. 20:59:02 29737 / wp_cache_get_cookies_values: return:  20:59:02 29737 / wp_cache_check_mobile: www.myappname.com443/ 20:59:02 29737 / supercache dir: /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/ 20:59:02 29737 / wp_cache_check_mobile: -https 20:59:02 29737 / No Super Cache file found for current URL: /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/index-https.html 20:59:02 29737 / wp_cache_get_cookies_values: return:  20:59:02 29737 / wp_cache_check_mobile: www.myappname.com443/ 20:59:02 29737 / In WP Cache Phase 2 20:59:02 29737 / Setting up WordPress actions 20:59:02 29737 / Created output buffer 20:59:02 29737 / wp_cache_get_cookies_values: return:  20:59:02 29737 / wpcache_do_rebuild: doing rebuild for /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/ 20:59:02 29737 / wpcache_do_rebuild: exiting as directory is not a directory: /var/www/myappname.com/public_html/wp-content/cache/supercache/www.myappname.com/ 15:59:03 29737 / Not caching POST request. 15:59:03 29737 / wp_cache_maybe_dynamic: returned $  buffer