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Getting blank page while trying to login to admin panel (3 posts)

  1. SilverSunrise
    Member
    Posted 4 years ago #

    Hi there,

    I am currently facing a problem with my wordpress blog http://www.seo-coaching.net. When trying to log in a blank page appears in the browser (Firefox and IE). It is probably a problem with PHP and when I empty my cache, the login page reappears.

    This problem first occurred after I had installed my new theme "novocane" and the plugin SEOpressor. Maybe there is a link to that.

    I already tried to adjust the wp-config.php file and added following lines:

    define('WP_MEMORY_LIMIT', '128M');
    define('WP_CACHE', false);

    However, this didn’t solve the issue. After that I turned on error reporting for PHP with:

    ini_set('display_errors',1);
    error_reporting(E_ALL|E_STRICT);

    Follwing output was generated:

    Strict Standards: Declaration of Walker_Category_Checklist::start_lvl() should be compatible with that of Walker::start_lvl() in /is/htdocs/wp1048090_8JCEI180MP/seo-coaching/wp-admin/includes/template.php on line 215
    
    Strict Standards: Declaration of Walker_Category_Checklist::end_lvl() should be compatible with that of Walker::end_lvl() in /is/htdocs/wp1048090_8JCEI180MP/seo-coaching/wp-admin/includes/template.php on line 215
    
    Strict Standards: Declaration of Walker_Category_Checklist::start_el() should be compatible with that of Walker::start_el() in /is/htdocs/wp1048090_8JCEI180MP/seo-coaching/wp-admin/includes/template.php on line 215
    
    Strict Standards: Declaration of Walker_Category_Checklist::end_el() should be compatible with that of Walker::end_el() in /is/htdocs/wp1048090_8JCEI180MP/seo-coaching/wp-admin/includes/template.php on line 215
    
    Warning: Cannot modify header information - headers already sent by (output started at /is/htdocs/wp1048090_8JCEI180MP/seo-coaching/wp-content/plugins/seo-pressor/seo-pressor.php:45) in /is/htdocs/wp1048090_8JCEI180MP/seo-coaching/wp-includes/pluggable.php on line 890

    Can anybody help?

    Thank you and regards.

  2. SilverSunrise
    Member
    Posted 4 years ago #

    I tried the following bug fix:

    http://core.trac.wordpress.org/ticket/7322

    but it didnt work neither.

    I also have this issue with a newly installed site:

    http://www.tianchua.net

    again the same...blank page after installation of wordpress and database.

    Could anybody help?

  3. esmi
    Forum Moderator
    Posted 4 years ago #

    Have you tried:

    - deactivating all plugins to see if this resolves the problem? If this works, re-activate the plugins one by one until you find the problematic plugin(s).

    - switching to the Twenty Ten theme to rule out any theme-specific problems?

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