JetPack 4.0.3 – My Site Went Blank After Updating

I’m sorry to hear you’ve run into issues.

Could you add the following to your site’s wp-config.php file?

define('WP_DEBUG', true);

if ( WP_DEBUG ) {

        @error_reporting( E_ALL );
        @ini_set( 'log_errors', true );
        @ini_set( 'log_errors_max_len', '0' );

        define( 'WP_DEBUG_LOG', true );
        define('WP_DEBUG_DISPLAY', false);
        define( 'CONCATENATE_SCRIPTS', false );
        define( 'SAVEQUERIES', true );

}

Once you’ve done so, try installing Jetpack again, then check the wp-content/debug.log file for errors, and paste the results here. You can then replace define('WP_DEBUG', true); by define('WP_DEBUG', false); in the code above.

Thanks!

Hi Jeremy,
here is the LOG:

[01-Jun-2016 19:42:26 UTC] PHP Notice:  has_cap was called with an argument that is <strong>deprecated</strong> since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in /home/XXXX/public_html/wp-includes/functions.php on line 3842
[01-Jun-2016 19:42:30 UTC] PHP Fatal error:  Allowed memory size of 67108864 bytes exhausted (tried to allocate 72 bytes) in /home/XXXX/public_html/wp-includes/plugin.php on line 202
[01-Jun-2016 19:42:37 UTC] Sorry, but recursing filters on "the_content" breaks NextGEN Gallery. Please see https://core.trac.www.ads-software.com/ticket/17817 and NGG_DISABLE_FILTER_THE_CONTENT
[01-Jun-2016 19:42:40 UTC] PHP Fatal error:  Allowed memory size of 67108864 bytes exhausted (tried to allocate 85 bytes) in /home/XXXX/public_html/wp-includes/wp-db.php on line 1780
[01-Jun-2016 19:42:43 UTC] PHP Fatal error:  Allowed memory size of 67108864 bytes exhausted (tried to allocate 7680 bytes) in /home/XXXX/public_html/wp-content/plugins/wordpress-seo/inc/class-wpseo-replace-vars.php on line 410
[01-Jun-2016 19:42:48 UTC] PHP Fatal error:  Allowed memory size of 67108864 bytes exhausted (tried to allocate 30720 bytes) in /home/XXXX/public_html/wp-content/plugins/wordpress-seo/inc/class-wpseo-replace-vars.php on line 586

It doesn’t seem to be linked to Jetpack, but it get solved when I remove that plugin…

That’s helpful, thank you!

As you can see, you’re running into a common WordPress error, that will happen if you use multiple plugins and if you have limited resources on your site.

PHP Fatal error: Allowed memory size of 67108864 bytes exhausted

You can learn more about it, and find out how to fix it here:
https://codex.www.ads-software.com/Editing_wp-config.php#Increasing_memory_allocated_to_PHP

Once you have more memory allocated to PHP on your site, you should be all set!

Hi Jeremy,
I have increased the memory and everything works fine.

Thank you very much for your help.