Blank White Screen after signing into WP-Admin page

  • Greetings all,

    I have an odd issue when a user (myself included as Admin) logs into the WP-ADMIN page, it re-routes me to the Dashboard (this is normal) however it is a blank white screen.

    I can get to the front end perfectly fine and even up top in the Admin bar, go to “Edit Profile” and it takes me to the back end and I can go to every part of the back end BESIDES “Dashboard” or “Home” for some reason. It always shows as a blank white page. This would be the index.php on the Admin end.

    Any ideas what caused this? There were no updates of any kind as far as WordPress version, plugins, etc. The only thing I know of that was updated was JAVA was updated on the server. I do not know if this had anything to do with it.

    Thanks in advance!

Viewing 9 replies - 1 through 9 (of 9 total)
  • Thread Starter jchambo

    (@jchambo)

    Alright i’m not sure what happened but the issue resolved itself. I think it may have been the SQL table the Database is written to. I created a new user in Chrome and it now works fine in IE8 (which is the browser I was having the issue on on multiple devices for multiple users.

    So looks like the addition of something new to the table fixed it in SQL.

    Cheers!

    [Moderator Note: No bumping, thank you.]

    Thread Starter jchambo

    (@jchambo)

    UPDATE: So I found on a Forum to add the following code into Line #2 in my index.php file under wp-admin folder:

    echo '<strong>debug: in index.php.</strong>';

    The text “debug: in index.php” flashes really quick, but then the white blank page takes over again.

    I’ve done the following with no success:

    – Looked for spaces in files along with php tags
    – Re-installed WordPress core files
    – Re-named plugins folder and attempted re-launching
    – Tried another Theme with same issue
    – Disabled all plugins and re-logged in with no success

    I’m at a loss at this point as I’ve tried just about everything. The issue appears with WordPress’s wp-admin\index.php file…

    Since I can sign in, go back to the front end, and click “Edit Profile” then get to the backend there, and go anywhere I want on the backend minus the Dashboard home page (index.php) it appears an issue with this single file. However, I’ve re-installed it several times.

    Could this be a SQL issue? If so, what exactly? I truly appreciate anyone that replies to this post.

    Thanks in advance!

    Try checking your site’s error logs for a more specific error message. Your hosts should be able to help you accessing your site’s error logs.

    Thread Starter jchambo

    (@jchambo)

    OK so I was finally able to get the DEBUG (true) (enabled in wp-config.php file) function to display with that added line of code in the above post in my index.php file.

    Here is a quick screenshot I could grab before the page went to a blank white page again:

    https://jchambo.com/wp-content/uploads/2014/06/debug_error.jpg

    debug: in index.php.
    <b>Notice</b>: register_uninstall_hook was called incorrectly. Only a static class method or function can be used in an uninstall hook. Please see Debugging in WordPress for more information. (This message was added in version 3.1.) in C:\inetpub\wwwroot\selfhelpkb\wp-includes\functions.php on line 3245

    Strict Standards: Redefining already defined constructor for class JCP_UseGoogleLibraries in C:\inetpub\wwwroot\selfhelpkb\wp-content\plugins\use-google-libraries\use-google-libraries.php on line 123

    Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in C:\inetpub\wwwroot\selfhelpkb\wp-includes\functions.php on line 3193

    Notice: add_contextual_help is deprecated since version 3.3! Use get_current_screen()->add_help_tab() instead. in C:\inetpub\wwwroot\selfhelpkb\wp-includes\functions.php on line 3078

    Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in C:\inetpub\wwwroot\selfhelpkb\wp-includes\functions.php on line 3193

    Notice: Undefined index: page in C:\inetpub\wwwroot\selfhelpkb\wp-content\plugins\order-categories\category-order.php on line 20

    You have a bad theme or plugin. 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 default theme to rule out any theme-specific problems.

    – resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

    Thread Starter jchambo

    (@jchambo)

    Thanks for responding, I greatly appreciate it.

    However, I’ve already tried all 3 of those suggestions. And to test again, I just tried once more again, and no luck.

    This website is not hosted on a public host, I have it hosted on an internal network at work on Windows Server 2008 R2.

    Any other suggestions?

    Thread Starter jchambo

    (@jchambo)

    Every wp-admin/ page works perfectly fine. It’s just the wp-admin/index.php file that is drawing a blank white screen. I can’t even right click anywhere on the page space to get my right click menu.

    Have you spoken to the network admins about this? It could be a server issue.

    Thread Starter jchambo

    (@jchambo)

    I am the admin for the server. There is no server issue at all. I have 2 instances installed on two different servers. A development server and a production server. Both encountered the same issue out of the blue somehow. There were no changes to any WordPress files or Plugin updates.

    The only thing I can think of is there was a JAVA update from Java 7 u55 to Java 7 u60… but I’ve tried rolling back to Java7 u55 and I still have the issue.

    I don’t know how local JAVA would have anything to do with WordPress at all anyway…unless it wrote something to the MySQL database…. but I haven’t found anything related.

Viewing 9 replies - 1 through 9 (of 9 total)
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