[wp-trac] [WordPress Trac] #50974: error when trying to test email

[WordPress Trac]

#50974: error when trying to test email
--------------------------+-----------------------------
 Reporter:  techteam2001  |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Plugins       |    Version:  5.5
 Severity:  critical      |   Keywords:
  Focuses:  performance   |
--------------------------+-----------------------------
 I encounter this error after update to 5.5 when we tried to test send out
 email
 *domain url is hidden for privacy

 2020-08-13T04:32:17+00:00 CRITICAL Uncaught Error: Call to a member
 function is_manual() on boolean in /home/xxxx/xxxx.com/wp-
 content/plugins/woocommerce/includes/admin/settings/class-wc-settings-
 emails.php:300
 Stack trace:
 #0 /home/xxxx/xxxx.com/wp-includes/class-wp-hook.php(287):
 WC_Settings_Emails->email_notification_setting(Array)
 #1 /home/xxxx/xxxx.com/wp-includes/class-wp-hook.php(311):
 WP_Hook->apply_filters('', Array)
 #2 /home/xxxx/xxxx.com/wp-includes/plugin.php(478):
 WP_Hook->do_action(Array)
 #3 /home/xxxx/xxxx.com/wp-content/plugins/woocommerce/includes/admin
 /class-wc-admin-settings.php(679): do_action('woocommerce_adm...', Array)
 #4 /home/xxxx/xxxx.com/wp-
 content/plugins/woocommerce/includes/admin/settings/class-wc-settings-
 emails.php(219): WC_Admin_Settings::output_fields(Array)
 #5 /home/xxxx/xxxx.com/wp-includes/class-wp-hook.php(287):
 WC_Settings_Emails->output('')
 #6 /home/xxxx/xxxx.com/wp-includes/cla in /home/xxxx/xxxx.com/wp-
 content/plugins/woocommerce/includes/admin/settings/class-wc-settings-
 emails.php on line 300

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Ticket URL: <https://core.trac.wordpress.org/ticket/50974>
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