Title: error causing problem in logging in
Last modified: August 18, 2016

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# error causing problem in logging in

 *  Resolved [geoffe](https://wordpress.org/support/users/geoffe/)
 * (@geoffe)
 * [20 years, 3 months ago](https://wordpress.org/support/topic/error-causing-problem-in-logging-in/)
 * I get this error whenever I login to WordPress except when I use Firefox.
 * Opera, IE and even Mozilla fail to log in any user, be it administrator, author
   or contributor. Yet Firefox shows no problems. I’m not sure if it’s a problem
   with my server. I ported a working setup from the web to a local server to develop
   WP and had to remove permalink URL rewriting because I couldn’t get .htaccess
   files recognized on my server. Anyone seen this before or decipher what it means:
 * Warning: array_filter(): The second argument, ‘stdClass::is_role’, should be 
   a valid callback in /var/www/wordpress/wp-includes/capabilities.php on line 162

Viewing 1 replies (of 1 total)

 *  Thread Starter [geoffe](https://wordpress.org/support/users/geoffe/)
 * (@geoffe)
 * [20 years, 3 months ago](https://wordpress.org/support/topic/error-causing-problem-in-logging-in/#post-356064)
 * It appears this problem was caused by the Post Restrictions plugin and did not
   affect only Firefox, it just happened that Firefox was the only browser with 
   a properly stored cookie to allow me to the admin interface.

Viewing 1 replies (of 1 total)

The topic ‘error causing problem in logging in’ is closed to new replies.

## Tags

 * [Post Restrictions](https://wordpress.org/support/topic-tag/post-restrictions/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 1 participant
 * Last reply from: [geoffe](https://wordpress.org/support/users/geoffe/)
 * Last activity: [20 years, 3 months ago](https://wordpress.org/support/topic/error-causing-problem-in-logging-in/#post-356064)
 * Status: resolved

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