Critical error message when registering user

Resolved

(@maddest)

Dear all,

I have installed the Mailpoet plugin some weeks ago and today some people told me they get a critical error message during the registration process. After checking the debug.log, I found out something is weird with the mailpoet plugin. After deactivating it, my website runs fine again. Could you please have a look on this?

Thanks, Bernd

[03-Mar-2023 15:30:48 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:30:48 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:30:57 UTC] PHP Deprecated:  uasort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-content/plugins/wpadverts-authors/includes/class-shortcode-manage.php on line 548
[03-Mar-2023 15:30:57 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:30:57 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:00 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:00 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:04 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:04 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:10 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:10 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:14 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:14 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:22 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:22 UTC] PHP Notice:  ob_end_flush(): Failed to send buffer of zlib output compression (1) in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/functions.php on line 5279
[03-Mar-2023 15:31:55 UTC] PHP Fatal error:  Uncaught TypeError: MailPoet\Statistics\Track\SubscriberHandler::identifyByLogin(): Argument #1 ($login) must be of type string, null given, called in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/class-wp-hook.php on line 310 and defined in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-content/plugins/mailpoet/lib/Statistics/Track/SubscriberHandler.php:38
Stack trace:
#0 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/class-wp-hook.php(310): MailPoet\Statistics\Track\SubscriberHandler->identifyByLogin(NULL)
#1 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array)
#2 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#3 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-content/plugins/wpadverts-authors/includes/class-shortcode-register.php(225): do_action('wp_login', NULL, Object(WP_User))
#4 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/class-wp-hook.php(308): Wpadverts_Authors_Shortcode_Register->init('')
#5 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#6 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#7 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-settings.php(617): do_action('init')
#8 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-config.php(107): require_once('/home/clients/5...')
#9 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-load.php(50): require_once('/home/clients/5...')
#10 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-blog-header.php(13): require_once('/home/clients/5...')
#11 /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/index.php(17): require('/home/clients/5...')
#12 {main}
  thrown in /home/clients/5dc1dd7d197d53c6ddc464732d2dfdee/sites/madlistings.com/wp-content/plugins/mailpoet/lib/Statistics/Track/SubscriberHandler.php on line 38

The page I need help with: [log in to see the link]

Viewing 5 replies - 1 through 5 (of 5 total)

Plugin Support Ojoma a11n
(@geraltrivia)

3 years, 2 months ago

Hello there @maddest ,

Thank you for reaching out to us.

Can you follow this guide: https://kb.mailpoet.com/article/258-re-installing-updating-the-plugin-via-ftp to see if it fixes this error?

Looking forward to hearing back from you.

Have a great day!

Thread Starter Maddest
(@maddest)

3 years, 2 months ago

Thanks a lot for your quick reply.

After I have detected this problem, I was googling around and found this manual. So, I already tried to re-install the plugin via FTP.

Unfortunately, the problem was not fixed that way. Again, I got a critical error when trying to register. Deactivating Mailpoet fixed the problem again.

Thanks and have a great day!

Thread Starter Maddest
(@maddest)

3 years, 2 months ago

Meanwhile I’ve updated to the latest version 4.8, but the error is still there.

Plugin Author Bruna a11n
(@bruberries)

3 years, 2 months ago

Hi @maddest,

This looks like a plugin or theme conflict. Can you switch your theme to a default one (Twenty Twenty) and disable all your plugins and see if MailPoet works?

If it does work, enable your theme and all your other plugins one after the other until MailPoet breaks again. You’ll be able to tell us what’s at fault.

You can refer to this article: https://kb.mailpoet.com/article/204-how-to-test-for-plugins-conflict

Let us know how that goes!

Plugin Support Kel C. a11n
(@kellymetal)

3 years, 1 month ago

Hi there @maddest,

We haven’t heard back from you in a while, so I’m going to mark this as resolved – if you have any further questions, you can start a new thread.

Viewing 5 replies - 1 through 5 (of 5 total)

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