problem while upgrading

  • My site https://wizardspost.com/ is WORKING but a strange problem has appeared.
    I was UPGRADING to wordpress latest version when it stalled ( I think) On refreshing it gave the following messages:

    Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘__return_zero’ was given in /home/wizard/public_html/wordpress/wp-includes/plugin.php on line 166

    Fatal error: Call to undefined function is_multisite() in /home/wizard/public_html/wordpress/wp-login.php on line 85

    Now I cannot login to my wp-admin.
    Can anyone suggest what I should do.

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

  • looks like a plugin problem
    ftp to site or use host’s file manager to rename the /plugins folder
    this will deactivate the plugins and allow you to log in
    rename folder back to normal and activate plugins one by one until you find offender

    Thread Starter truwizard

    (@truwizard)

    I went to public_html and tried changing Plugins folder in wp-includes. That made it give an additional error and the website too stopped opening.
    So, I restored the original and at least the site started opening again but my problem of not being able to log in for dashboard

    Please could you TRY OUT https://wizardspost.com/wordpress/wp-login to know

    plugin folder is in wp-content, not wp-includes

    you do not want to change this file: wp-includes/plugin.php

    you want to rename the wp-content/plugins folder, this weill deactivate all plugins

    Thread Starter truwizard

    (@truwizard)

    Ok, Thanks
    I did that but still shows the same error as
    ( wonder if there is time gap till it takes effect)

    Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, ‘__return_zero’ was given in /home/wizard/public_html/wordpress/wp-includes/plugin.php on line 166

    Fatal error: Call to undefined function is_multisite() in /home/wizard/public_html/wordpress/wp-login.php on line 85

    Any suggestions?
    I dont want to loose my work by reintalling the full wordpress from site

    Thread Starter truwizard

    (@truwizard)

    I downloaded wordpress 3.0.1 and installed it.

    Good result – The page loads and I can also login to https://wizardspost.com/wordpress/wp-admin/ AND see my dashboard. All the links seem to work properly EXCEPT PLUGINS.

    Bad Result – When I click on Plugins on the dashboard I get this error :

    Not Found

    The requested URL /wordpress/wp-admin/plugins.php was not found on this server.

    Additionally, a 404 Not Found error was encountered while trying to use an Error Document to handle the request.

    On checking the files I note that plugins.php is in wp-admin > includes and another one in wp-includes

    Any suggestions what I should do? Incidentally, I had only ONE plugin active ( adsense-delux.php)
    SAME result when I rename wp-content/plugins folder

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