Another admin-side white screen of death post

deactivate all plugins and leave them deactivated and then see what error you get on the page.

I see you have wp-super-cache disable that as well

Yes, I’ve replaced all the WordPress core files, including the wp-content folder, so the TwentyEleven theme and the Akismet plugin on the server were overwritten with fresh versions from the installation archive.

The blog was recently upgraded from WordPress v3.3.1 to WordPress v3.3.2. After the upgrade, the blog was working fine until last night when it just stopped working. I hadn’t made any changes to the blog since it was last fully functional.

Currently, all the plugins are disabled (renamed plugins directory) and I’ve set the active_plugins field in the database to a:0:{} to be certain.

No luck. Dashboard is still a white screen.

@govpatel

Sorry, misunderstood what you were asking in your previous post.

Here’s the debug errors with all plugins disabled, TwentyEleven theme installed, and when I load the home page:

Warning: include_once(/home/myblog/public_html/neb/wp-content/plugins/wp-super-cache/wp-cache-phase1.php) [function.include-once]: failed to open stream: No such file or directory in /home/myblog/public_html/neb/wp-content/advanced-cache.php on line 8

Warning: include_once() [function.include]: Failed opening '/home/myblog/public_html/neb/wp-content/plugins/wp-super-cache/wp-cache-phase1.php' for inclusion (include_path='.:/usr/lib/php') in /home/myblog/public_html/neb/wp-content/advanced-cache.php on line 8

This is the debug errors I get when I try to load to go to /wp-admin/:

Warning: include_once(/home/myblog/public_html/neb/wp-content/plugins/wp-super-cache/wp-cache-phase1.php) [function.include-once]: failed to open stream: No such file or directory in /home/myblog/public_html/neb/wp-content/advanced-cache.php on line 8

Warning: include_once() [function.include]: Failed opening '/home/myblog/public_html/neb/wp-content/plugins/wp-super-cache/wp-cache-phase1.php' for inclusion (include_path='.:/usr/lib/php') in /home/myblog/public_html/neb/wp-content/advanced-cache.php on line 8

Warning: Cannot modify header information - headers already sent by (output started at /home/myblog/public_html/neb/wp-config.php:1) in /home/myblog/public_html/neb/wp-includes/pluggable.php on line 866

I have managed to fix my white screen issue. ( big thanks to Jan )

My issue, an looking at your error bug your possibly too, was my themes function.php.

I made a backup of the function.php file just in case. Then I saved the original function.php from my original theme download over the existing one on the server.

In my case I had to rewrite some excludes back to the file to hide some pages from my menu but that was it.

All is now back to normal. I hope this helps.

Regards, Paul

@frikafrax sorry for delay as I was busy today I just got back if you look the errors on /wp-admin/

With all plugins deactivated you still have error on wp-super-cache so delete that folder altogether in plugins folder

You have this file in wp-content folder advanced-cache.php delete that one as well and see if that solves the problem.

If you still have problem I would recommend that you backup your database and reinstall from scratch in a new folder and once you have one installed change the database settings in wp-config.php new install to your old database and see if you have problems in this install to rule any problems in database.

If all goes well you rename wp-content folder in new install and copy wp-content folder from your old install to new install and see if this solves your problem.

@govpatel

Thanks very much for your help. It’s greatly appreciated.

Deleting Super Cache and advanced-cache.php had no effect but the site’s back up and running properly again!

What I did was I re-installed WordPress completely from scratch into an empty directory, confirmed Dashboard was working, imported the original database and copied the plugins directory over.

Before doing anything in WordPress, I edited the database via phpmyadmin to manually de-activate all the plugins by setting wp_options -> active_plugins to “a:0:{}”. I also re-saved my permalinks settings.

I copied over the wp-content/uploads directory, then re-enabled plugins incrementally until the site seemed to be displaying and operating normally.

The odd thing was that when I first attempted a fresh re-installation of WordPress using an empty database and installation directory and no plugins copied over, I was surprised to see “headers already sent” error messages and a blank dashboard. But I met with success on the second re-installation attempt. Not sure what happened there…

I’m not sure what the cause of the Dashboard failure was since it wasn’t any of the “usual suspects.” I.e. theme, plugins, extra blank lines or white space or corrupt core files etc.

But at least things are working now.

Glad to know that you have your website normal we tried all we know could cause the problem and that why I recommended to install from scratch