PHP Fatal error: Allowed memory exhausted

  • Hi all,

    Seeing this on one of the sites I host since a few days (weeks?):
    PHP Fatal error: Allowed memory size of 536870912 bytes exhausted

    Happens both when the site uses the plugin, and when I go for ‘Send test email’. The email does get delivered though.
    Error also appears when I try to access the Email log. (log doesn’t show)

    Found the following in my nginx error log:
    2020/08/14 10:52:57 [error] 20296#20296: *38568 FastCGI sent in stderr: “PHP message: WordPress database error Commands out of sync; you can’t run this command now for query SELECT umeta_id FROM wp_usermeta WHERE meta_key = ‘wp_yoast_notifications’ AND user_id = 4 made by shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, Yoast_Notification_Center->update_storage, array_walk, Yoast_Notification_Center->store_notifications_for_user, update_user_option, update_user_meta, update_metadataPHP message: WordPress database error Commands out of sync; you can’t run this command now for query SHOW FULL COLUMNS FROMwp_usermetamade by shutdown_action_hook, do_action(‘shutdown’), WP_Hook->do_action, WP_Hook->apply_filters, Yoast_Notification_Center->update_storage, array_walk, Yoast_Notification_Center->store_notifications_for_user, update_user_option, update_user_meta, update_metadata, add_metadata” while reading upstream, client: 1.2.3.4, server: domain.com, request: “POST /wp-admin/admin-ajax.php?_fs_blog_admin=true HTTP/1.1”, upstream: “fastcgi://unix:/run/php/php7.4-fpm.sock:”, host: “domain.com”, referrer: “https://domain.com/wp-admin/admin.php?page=postman%2Femail_test”

    Who has any idea?

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