Title: Core.php errors
Last modified: August 19, 2016

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# Core.php errors

 *  [acshun](https://wordpress.org/support/users/acshun/)
 * (@acshun)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/corephp-errors/)
 * I am receiving errors on two of my websites, but the others are unaffected.
 * This is on one:
    Warning: include(core.php) [function.include]: failed to open
   stream: No such file or directory in /home/acshun/public_html/wp-content/plugins/
   seo-blog/seo-blog.php on line 11
 * Warning: include(core.php) [function.include]: failed to open stream: No such
   file or directory in /home/acshun/public_html/wp-content/plugins/seo-blog/seo-
   blog.php on line 11
 * Warning: include() [function.include]: Failed opening ‘core.php’ for inclusion(
   include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/acshun/public_html/
   wp-content/plugins/seo-blog/seo-blog.php on line 11
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/acshun/public_html/wp-content/plugins/seo-blog/seo-blog.php:11) in /
   home/acshun/public_html/wp-includes/pluggable.php on line 865
 * And this is on the other:
    Warning: require_once(/home/acshun/public_html/couturespecialtycakes/
   wp-content/plugins/nextgen-gallery/lib/core.php) [function.require-once]: failed
   to open stream: No such file or directory in /home/acshun/public_html/couturespecialtycakes/
   wp-content/plugins/nextgen-gallery/nggallery.php on line 229
 * I noticed both of them today and the site were working before. I didn’t update
   plugins or install anything new.
 * I searched the Internet and found other sites with similar errors.
 * I can’t login to disable any plugins.
 * Any ideas?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [alism](https://wordpress.org/support/users/alism/)
 * (@alism)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/corephp-errors/#post-1253248)
 * Looking at Google’s cache on one of those sites, it looks like you were running
   2.8.2, so I suppose it’s not beyond the realms of possibility that they’ve been
   hacked, so that might be one to look into further. Take a look at your wp-config.
   php file. Has anything been added to it/changed for example?
 * But anyway, using FTP, try renaming the plugins (wp-content/plugins/) folder 
   to something like ‘plugins2’. Should take a plugin problem out of the equation
   anyway.
 *  Thread Starter [acshun](https://wordpress.org/support/users/acshun/)
 * (@acshun)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/corephp-errors/#post-1253285)
 * The first problem was with seo-blog. It is on both sites and not on any others
   so I renamed that through ftp.
 * The second problem was with Nextgen Gallery. There was no core.php file there
   and there isn’t one in the download so I will need to figure that out.
 * Thanks alism for the help.
 *  Thread Starter [acshun](https://wordpress.org/support/users/acshun/)
 * (@acshun)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/corephp-errors/#post-1253295)
 * Correction: The newest version of Nextgen Gallery does have a core.php file so
   I uploaded that file and the site works again.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Core.php errors’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [acshun](https://wordpress.org/support/users/acshun/)
 * Last activity: [16 years, 7 months ago](https://wordpress.org/support/topic/corephp-errors/#post-1253295)
 * Status: not resolved

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