private.php and search.php white page
 

My forum ( vBulletin version 3.6.4.)
http://www.nscale.org/forum/index.php
work very well, but for two days only 2 link show a white page,
private.php (view Private Messages) and search.php (all SEARCH and NEW POSTS).
show a completely white page without errors
I, in the time, have active any add-ons, but I have not installed new add-ons or plug-in in the last days,
I have add only little mod for the Google Search in home page and not have modificate template!

I have disabled the Google Search mod, I have restored header, headinclude and phpinclude templates with the original templates, I have restored private.php and search.php files with the original files,
but nothing !!! private.php and search.php continue again to show a white page.

why? ....could it depend $session variable ?

who help me?

thanks

<a href="http://www.vbulletin.com/docs/html/blank_pages" target="_blank">http://www.vbulletin.com/docs/html/blank_pages</a>

Disable all your plugins/products/modifications and try using a default style and see if you get problems.

I have Disable all plugins/products/modifications :
define('DISABLE_HOOKS', true);
but return this error:

Fatal error: Call to undefined function: print_portal_output() in E:\wwwroot\forum\index.php on line 48

--------------- Added at 14:27 ---------------

I don't want to exclude all mods installed in years of work
I have not installed new add-ons or plug-in in the last days
and the forum worked well up to yesterday

--------------- Added at 15:41 ---------------

help me?

I have had that happen before and it was because the last line in those pages somehow ended up with an extra character in them. I copied the last line from another page that works and replaced the last line in the non-working page and then it worked. I'm not sure if that is your problem though but you may want to look into it.

I check all template, the problem is in $session variable

SESSIONURL is correctly in my headinclude:

but in HTML source the variable SESSIONURL is empty

IMGDIR_MISC and vb_disable_ajax is correct but SESSIONURL si empty

what is the file that send this variable as could I check
if it is corrupt ?

The SESSIONURL variable is blank for logged in users. Take a look at the source code for this page while you are logged in and you will see what I mean.

Check your webserver error logfile.

Some reasons:
- Out of memory
- Mod_security
- Hardened PHP/Suhosin

thanks Marco !!

sorry what is "Mod_security" ?
I dont have Apache server but IIS,
is there mod_security for IIS ?
and what is the file that send $session[sessionurl_js] variable ?

my web server is IIS

If you are running IIS, then my first suggestion would be to request your host to increase the memory_limit. If this does not help, review the webserver errorlog.

in php.ini :
memory_limit = 32M
post_max_size = 32M
upload_max_filesize = 32M