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1. seb_g
   Member
   Posted 7 months ago #

   I've read all topics about white screen of death and I didn't find the solution of my problem.

   The thing is that I have created a network of 265 blogs. I use the domain mapping plugin in order to have every single site working with different domain.

   Unfortunately some time ago I started getting white screen of death when I try to enter /wp-admin/ in the main site and in each single blog. All sites are working properly, but there is no possibility to enter the admin page. I can't find the reason of this situation. It just started without my interference.

   I've tried everything. Firstly I thought that someone hacked my network. I searched files for any changes, I reinstalled my WordPress and it didn't help.

   Then I thought that one of my plugins could cause the problem, so I changed the name of my plugins directory. The result was the same - white screen.

   I searched my datebase for any signs of hacking, but I couldn't find nothing.

   I looked for phrases: iframe and noscript.

   Do you have any ideas?

2. Ipstenu
   Half-Elf Support Rogue & Mod
   Posted 7 months ago #

   You could try a scan at http://sitecheck.sucuri.net/scanner/

   Every single wp-admin is a WSoD... Did you rename the mu-plugins folder as well?

3. seb_g
   Member
   Posted 7 months ago #

   Mu-plugins are located in plugins directory in wp-content. I did not create the mu-plugins folder, because there none of the plugins needed this.

   Sitecheck says that site is clean...

4. Ipstenu
   Half-Elf Support Rogue & Mod
   Posted 7 months ago #

   So "I'm not using mu-plugins" (you know if I don't ask we'll spend hours down the wrong path).

   Check your server's error log for PHP errors related to wp-admin.

5. seb_g
   Member
   Posted 7 months ago #

   I checked the server's error log and there are only warnings, but I don't know if they have any influence on wp-admin.

   [Tue Nov 01 17:19:21 2011] [error] [client 207.46.204.192] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/user/domains/my_domain/public_html/wp-config.php:1) in /home/user/domains/my_domain/public_html/wp-content/plugins/google-sitemap-generator/sitemap-core.php on line 1577
   [Tue Nov 01 17:21:04 2011] [error] [client 157.55.17.200] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/user/domains/my_domain/public_html/wp-config.php:1) in /home/user/domains/my_domain/public_html/wp-content/plugins/google-sitemap-generator/sitemap-core.php on line 1577
   [Tue Nov 01 17:28:24 2011] [error] [client 157.55.17.200] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/user/domains/my_domain/public_html/wp-config.php:1) in /home/user/domains/my_domain/public_html/wp-content/plugins/google-sitemap-generator/sitemap-core.php on line 1577
   [Tue Nov 01 17:29:35 2011] [error] [client 66.249.72.198] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/user/domains/my_domain/public_html/wp-config.php:1) in /home/user/domains/my_domain/public_html/wp-content/plugins/wordpress-mu-domain-mapping/domain_mapping.php on line 712
   [Tue Nov 01 17:29:36 2011] [error] [client 66.249.72.198] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/user/domains/my_domain/public_html/wp-config.php:1) in /home/user/domains/my_domain/public_html/wp-content/plugins/wordpress-mu-domain-mapping/domain_mapping.php on line 712

6. Jan Dembowski
   Volunteer Mod. & Brute Squad
   Posted 7 months ago #

   If it's the Headers already sent problem, then make a backup copy of your wp-config.php and put that in a safe place.

   Then edit your wp-config.php and look for any blank lines, spaces, or tabs that don't belong there. If anything goes grossly wrong, restore that backup copy of that file.

   http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F

7. seb_g
   Member
   Posted 7 months ago #

   I edited the wp-config.php file with Dreamweaver now, because I changed the password to wp-admin with Notepad and there were spaces.

   Thank you very much, the problem is solved.

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