Fatal error.

Redirect could not be issued due to headers already being sent. Halting execution for security. Output started in file /home/proftpd/www@integrasocial.net/anprotec/mod/au_subgroups/lib/functions.php at line 298. Search http://learn.elgg.org/ for more information.

SecurityException Object
(
[message:protected] => Redirect could not be issued due to headers already being sent. Halting execution for security. Output started in file /home/proftpd/www@integrasocial.net/anprotec/mod/au_subgroups/lib/functions.php at line 298. Search http://learn.elgg.org/ for more information.
[string:Exception:private] => exception 'SecurityException' with message 'Redirect could not be issued due to headers already being sent. Halting execution for security. Output started in file /home/proftpd/www@integrasocial.net/anprotec/mod/au_subgroups/lib/functions.php at line 298. Search http://learn.elgg.org/ for more information.' in /home/proftpd/www@integrasocial.net/anprotec/engine/lib/elgglib.php:99
Stack trace:
#0 /home/proftpd/www@integrasocial.net/anprotec/engine/lib/pagehandler.php(217): forward('activity')
#1 [internal function]: elgg_front_page_handler(NULL, NULL)
#2 /home/proftpd/www@integrasocial.net/anprotec/engine/classes/Elgg/Router.php(79): call_user_func('elgg_front_page...', NULL, NULL)
#3 /home/proftpd/www@integrasocial.net/anprotec/index.php(22): Elgg_Router->route(Object(Elgg_Http_Request))
#4 {main}
[code:protected] => 0
[file:protected] => /home/proftpd/www@integrasocial.net/anprotec/engine/lib/elgglib.php
[line:protected] => 99
[trace:Exception:private] => Array
(
[0] => Array
(
[file] => /home/proftpd/www@integrasocial.net/anprotec/engine/lib/pagehandler.php
[line] => 217
[function] => forward
[args] => Array
(
[0] => activity
)

)

[1] => Array
(
[function] => elgg_front_page_handler
[args] => Array
(
[0] =>
[1] =>
)

)

[2] => Array
(
[file] => /home/proftpd/www@integrasocial.net/anprotec/engine/classes/Elgg/Router.php
[line] => 79
[function] => call_user_func
[args] => Array
(
[0] => elgg_front_page_handler
[1] =>
[2] =>
)

)

[3] => Array
(
[file] => /home/proftpd/www@integrasocial.net/anprotec/index.php
[line] => 22
[function] => route
[class] => Elgg_Router
[type] => ->
[args] => Array
(
[0] => Elgg_Http_Request Object
(
[query] => Elgg_Http_ParameterBag Object
(
[parameters:protected] => Array
(
[__elgg_uri] => groups/all
[filter] => open
)

)

[request] => Elgg_Http_ParameterBag Object
(
[parameters:protected] => Array
(
)

)

[cookies] => Elgg_Http_ParameterBag Object
(
[parameters:protected] => Array
(
[Elgg] => 3cuhc8082hpkpg586oap6590a5
)

)

[files] => Elgg_Http_ParameterBag Object
(
[parameters:protected] => Array
(
)

)

[server] => Elgg_Http_ParameterBag Object
(
[parameters:protected] => Array
(
[REDIRECT_UNIQUE_ID] => VRltg38AAQEAAEOQPMwAAAA@
[REDIRECT_STATUS] => 200
[UNIQUE_ID] => VRltg38AAQEAAEOQPMwAAAA@
[HTTP_HOST] => integrasocial.net
[HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
[HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
[HTTP_ACCEPT_LANGUAGE] => pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3
[HTTP_ACCEPT_ENCODING] => gzip, deflate
[HTTP_REFERER] => http://integrasocial.net/anprotec/groups/all
[HTTP_COOKIE] => Elgg=3cuhc8082hpkpg586oap6590a5
[HTTP_CONNECTION] => keep-alive
[PATH] => /usr/local/bin:/usr/bin:/bin
[SERVER_SIGNATURE] =>
[SERVER_SOFTWARE] => Apache
[SERVER_NAME] => integrasocial.net
[SERVER_ADDR] => 186.225.239.144
[SERVER_PORT] => 80
[REMOTE_ADDR] => 177.42.52.84
[DOCUMENT_ROOT] => /home/proftpd/www@integrasocial.net
[SERVER_ADMIN] => [no address given]
[SCRIPT_FILENAME] => /home/proftpd/www@integrasocial.net/anprotec/index.php
[REMOTE_PORT] => 50377
[REDIRECT_QUERY_STRING] => __elgg_uri=groups/all&filter=open
[REDIRECT_URL] => /anprotec/groups/all
[GATEWAY_INTERFACE] => CGI/1.1
[SERVER_PROTOCOL] => HTTP/1.1
[REQUEST_METHOD] => GET
[QUERY_STRING] => __elgg_uri=groups/all&filter=open
[REQUEST_URI] => /anprotec/groups/all?filter=open
[SCRIPT_NAME] => /anprotec/index.php
[PHP_SELF] => /anprotec/index.php
[REQUEST_TIME] => 1427729795
)

)

[headers] => Elgg_Http_ParameterBag Object
(
[parameters:protected] => Array
(
[Host] => integrasocial.net
[User-Agent] => Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
[Accept] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
[Accept-Language] => pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3
[Accept-Encoding] => gzip, deflate
[Referer] => http://integrasocial.net/anprotec/groups/all
[Cookie] => Elgg=3cuhc8082hpkpg586oap6590a5
[Connection] => keep-alive
)

)

[baseUrl:protected] =>
[requestUri:protected] => /anprotec/groups/all?filter=open
[pathInfo:protected] =>
)

)

)

)

[previous:Exception:private] =>
)