Title: [Plugin: Social-Connect] HTTP Error 500 (Internal Server Error)
Last modified: August 20, 2016

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# [Plugin: Social-Connect] HTTP Error 500 (Internal Server Error)

 *  Resolved [Dexmaster](https://wordpress.org/support/users/dexmaster/)
 * (@dexmaster)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/plugin-social-connect-http-error-500-internal-server-error/)
 * I have problem saying “HTTP 500 (Internal Server Error)” it worked just fine 
   few days ago. No changes were made on site. Url looks like: [http://example.com/wp-content/plugins/social-connect/facebook/callback.php?code=AQDRNrw4Gr5aXlRSzhV4B7AU_P786W5TLjw9Jwm4EITkd8jwGZkPguSzjOHvk8wQXPmmz6j9jGjhDcnLPSpE3_BEilBdBcbFtQSO8DQZ2e47yyLgc5kmuxf2kXVxrwe4kXL_C94q8ttsST7ggHClJMrpt2BVDuCwXkOXmcxkd49MDFi-7J415RMh5IqavUzW4Hv-R-nUewjuGcDN_8D5zXd9](http://example.com/wp-content/plugins/social-connect/facebook/callback.php?code=AQDRNrw4Gr5aXlRSzhV4B7AU_P786W5TLjw9Jwm4EITkd8jwGZkPguSzjOHvk8wQXPmmz6j9jGjhDcnLPSpE3_BEilBdBcbFtQSO8DQZ2e47yyLgc5kmuxf2kXVxrwe4kXL_C94q8ttsST7ggHClJMrpt2BVDuCwXkOXmcxkd49MDFi-7J415RMh5IqavUzW4Hv-R-nUewjuGcDN_8D5zXd9)
   
   It can’t callback. It just stops and nothing happens (no redirects or anything).
   Tried [this](http://wordpress.org/support/topic/if-you-are-having-problems-with-connecting-to-facebook)
   had no effect. It all worked just few days ago. And it checks login from facebook
   side. Maybe some changes were made in Facebook api?

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

 *  Thread Starter [Dexmaster](https://wordpress.org/support/users/dexmaster/)
 * (@dexmaster)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/plugin-social-connect-http-error-500-internal-server-error/#post-2210874)
 * problem was in two plugins creating same facebook class
    helped: `if (!class_exists('
   FacebookApiException'))` before `class FacebookApiException extends Exception`
   and `if (!class_exists('Facebook'))` before `class Facebook` in facebook/facebook.
   php
 *  Plugin Author [thenbrent](https://wordpress.org/support/users/thenbrent/)
 * (@thenbrent)
 * [14 years, 10 months ago](https://wordpress.org/support/topic/plugin-social-connect-http-error-500-internal-server-error/#post-2210974)
 * Thanks I’ll make sure this is added to the next version.
 *  [petermolnar](https://wordpress.org/support/users/cadeyrn/)
 * (@cadeyrn)
 * [14 years, 8 months ago](https://wordpress.org/support/topic/plugin-social-connect-http-error-500-internal-server-error/#post-2211170)
 * Hi!
 * I’ve found a similar one: Twitter connection conflicts with [Flattr](http://wordpress.org/extend/plugins/flattr/)
   plugin.
 * The error log output:
 *     ```
       011/09/30 19:14:45 [error] 20546#0: *342 FastCGI sent in stderr: "PHP Fatal error:  Uncaught exception 'EpiOAuthUnauthorizedException' with message '<?xml version="1.0" encoding="UTF-8"?>
       <hash>
         <error>Invalid / expired Token</error>
         <request>/oauth/access_token</request>
       </hash>
       ' in /WPFOLDER/wp-content/plugins/social-connect/twitter/EpiOAuth.php:249
       Stack trace:
       #0 /WPFOLDER/wp-content/plugins/social-connect/twitter/EpiOAuth.php(228): EpiOAuthException::raise('<?xml version="...', 401)
       #1 /WPFOLDER/wp-content/plugins/social-connect/twitter/callback.php(14): EpiOAuthResponse->__get('oauth_token')
       #2 /WPFOLDER/wp-content/plugins/flattr/flattr5.php(581): include_once('/...')
       #3 [internal function]: new_flattrss_callback('')
       #4 /WPFOLDER/wp-includes/plugin.php(405): call_user_func_array('new_flattrss_ca...', Array)
       #5 /WPFOLDER/wp-settings.php(302): do_action('init')
       #6 /WPFOLDER/wp-config.php(107): require_once('/...')
       #7 /WPFOLDER/wp in /WPFOLDER/wp-content/plugins/social-connect/twitter/EpiOAuth.php on line 249" while reading response header from upstream, client: 212.51.122.137, server: MYSITE.COM, request: "GET /wp-content/plugins/social-connect/twitter/connect.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "MYSITE.COM", referrer: "http://MYSITE.COM/wp-login.php?redirect_to=http%3A%2F%2FMYSITE.COM%2Fwp-admin%2F&reauth=1"
       ```
   
 * Can I help somehow to resolve it?
 * Thanks,
    Peter

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

The topic ‘[Plugin: Social-Connect] HTTP Error 500 (Internal Server Error)’ is closed
to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/social-connect.svg)
 * [Social Connect](https://wordpress.org/plugins/social-connect/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/social-connect/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/social-connect/)
 * [Active Topics](https://wordpress.org/support/plugin/social-connect/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/social-connect/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/social-connect/reviews/)

 * 3 replies
 * 3 participants
 * Last reply from: [petermolnar](https://wordpress.org/support/users/cadeyrn/)
 * Last activity: [14 years, 8 months ago](https://wordpress.org/support/topic/plugin-social-connect-http-error-500-internal-server-error/#post-2211170)
 * Status: resolved