Blank pages

[bdavisshannon]

Allo all,

I'm currently using the previous version of digress.it (I use More
Privacy, so the 3.0 is not an option) in a class I'm teaching and I've
suddenly had a rather fatal error. If I or any of my students click
on a chapter link, it leads to a completely blank page. The main page
is completely intact, as are all of the page links along the top
(under the banner), but none of the chapter links under the TOC lead
to anything but a completely blank screen (no theme, no nothing).

I run a MU installation and all of the other instances of digress.it
still work fine. All of the comments and posts are perfectly fine in
the backend, but they are inaccessible through the actual site. No
changes have been made to the site in days (and then only to post some
new readings), so the problem is coming out of nowhere (from my
perspective).

Plugins: WP-UsersOnline; More Privacy Options; Avatars; Enhanced Meta
Widget; Exclude Pages from Navigation; Multisite User Management; My
Page Order; Page Links To; SimpleModal Login; WP Mass User Input

The only alteration to the code has been to fix the navigation buttons
so that they point to the subdirectory, not the root directory.

Any help would be appreciated!

Thanks,
Brandon

[bdavisshannon]

As an afterthought, I can only provide password access to this site
for copyright reasons, so if a look at the site is needed, I'll have
to provide that through email.

[Eddie A Tejeda]

A login would help me debug. I will contact you off the list.

--
Eddie A Tejeda

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[Erin Bell]

I was having the same issue, and, whittling down possible conflicts, decided it was either a caching issue (using Quick Cache) or a BuddyPress issue, specifically the BP Admin Bar, which I cannot disable network-wide at the moment.  So, for now, I went into the digress.it theme functions.php and added the following and cleared my cache.  So far, so good. If it comes back, I'll blame the cache.

add_action('init', 'remove_buddyadminbar', 100);

function remove_buddyadminbar(){
   /* Remove the BuddyPress "BuddyBar" admin bar */
   remove_action( 'wp_footer', 'bp_core_admin_bar', 8 );
   remove_action( 'admin_footer', 'bp_core_admin_bar' );
}

So if you have BP installed on your network, this could be one possible culprit.

I wonder if there is some kind of JS conflict going on here. I haven't really looked at the BP admin bar code, so I'm not sure what it does. Just a guess.

[josswinn]

Thanks for letting us know about this, Erin. It's driving me nuts. Do
let us know if it comes back.

[Erin Bell]

It came back. So currently, I'm thinking it was a conflict with the Quick Cache plugin, as deactivating that seems to have fixed the issue. More or less. Too bad, because Quick Cache was doing a really good job. Hopefully I can find another that won't cause issues with Digress.it.

[Eddie A Tejeda]

I can get a list of all the activated plugins?

--
Eddie A Tejeda

On Wed, Sep 7, 2011 at 1:07 PM, Erin Bell <ebell...@gmail.com> wrote:

It came back. So currently, I'm thinking it was a conflict with the Quick Cache plugin, as deactivating that seems to have fixed the issue. More or less. Too bad, because Quick Cache was doing a really good job. Hopefully I can find another that won't cause issues with Digress.it.

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[Alex Bilbie]

We use WP-Cache and it works great for us.

Have you got Apache/PHP error logging turned on? Are there any errors reported in the log file when you come across a blank page?

Alex

On 7 Sep 2011, at 21:07, Erin Bell <ebell...@gmail.com> wrote:

It came back. So currently, I'm thinking it was a conflict with the Quick Cache plugin, as deactivating that seems to have fixed the issue. More or less. Too bad, because Quick Cache was doing a really good job. Hopefully I can find another that won't cause issues with Digress.it.

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[Eddie A Tejeda]

I also never have problems on Regulation Room and Digress.it.

It must be an interaction with another plugin.

--
Eddie A Tejeda

[Erin Bell]

I just de-/re-activated Digress.it and the site is currently working, though for how long I'm not sure.

Here is the site in question: http://lehfeldt645.clevelandhistory.org/ (though the issue can be reproduced on other sites within the network).

Although it's working at the moment, the site was producing a blank page about 80% of the time.

The Network has the following plugins installed and activated sitewide:

• BuddyPress
• Akismet
• WPMU Theme Stats
• Blog Topics (modified)
• Google Analytics (custom, but basically just uses add_action('wp_head',...))
• 1 Bit Audio Player
• BP Disable Activation
• Exclude Pages from Navigation
• Page Links To
• Restrict Multisite Plugins
• Simple Import Users
  
• Unconfirmed
  
• Unfiltered MU
  
• WordPress Importer

Anyway, hopefully the old "turn it off and then on again" trick will work. Not sure how I always forget to try that first. :)