Site Continues Crashing

I continue to get 500 Internal Server Errors on this site. In the logs this is repeated over and over. Please help.

[Thu Mar 08 12:41:28 2018] [error] [client 67.205.12.216] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/?wphb-check-cf=true
[Thu Mar 08 12:41:33 2018] [error] [client 67.205.12.216] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/?wphb-check-cf=true
[Thu Mar 08 12:41:34 2018] [error] [client 67.205.12.216] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/?wphb-check-cf=true
[Thu Mar 08 12:41:34 2018] [error] [client 67.205.12.216] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/wp-cron.php?doing_wp_cron=1520541694.3816919326782226562500
[Thu Mar 08 12:41:36 2018] [error] [client 76.25.136.234] post was called incorrectly. Product properties should not be accessed directly. Backtrace: require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('wp_loaded'), WP_Hook->do_action, WP_Hook->apply_filters, WC_Cart_Session->get_cart_from_session, WC_Cart->calculate_totals, do_action('woocommerce_after_calculate_totals'), WP_Hook->do_action, WP_Hook->apply_filters, BeRocket_MM_Quantity::cart_calculate_total, br_wc_get_product_post, WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong. This message was added in version 3.0., referer: https://www.integratedlifeproject.com/wp-admin/admin.php?page=wphb-caching&view=main
[Thu Mar 08 12:41:36 2018] [error] [client 76.25.136.234] Premature end of script headers: php70.cgi, referer: https://www.integratedlifeproject.com/wp-admin/admin.php?page=wphb-caching&view=main
[Thu Mar 08 12:41:36 2018] [error] [client 76.25.136.234] Premature end of script headers: php70.cgi, referer: https://www.integratedlifeproject.com/wp-admin/admin.php?page=wphb-caching&view=main
[Thu Mar 08 12:41:36 2018] [error] [client 67.205.12.216] Premature end of script headers: php70.cgi, referer: https://www.integratedlifeproject.com/?wphb-check-cf=true
[Thu Mar 08 12:41:37 2018] [error] [client 76.25.136.234] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/wp-admin/admin.php?page=wphb-caching&view=main
[Thu Mar 08 12:41:37 2018] [error] [client 76.25.136.234] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/wp-admin/admin.php?page=wphb-caching&view=main
[Thu Mar 08 12:41:37 2018] [error] [client 67.205.12.216] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/?wphb-check-cf=true
[Thu Mar 08 12:41:37 2018] [error] [client 67.205.12.216] Cannot load Zend OPcache - it was already loaded, referer: https://www.integratedlifeproject.com/?wphb-check-cf=true