( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php:16) in /var/www/wordpress-multisite/wp-includes/pluggable.php on line 1265
Call Stack
#TimeMemoryFunctionLocation
10.0027528288{main}( ).../wp-signup.php:0
21.317010435576get_header( ).../wp-signup.php:79
31.317010436000locate_template( ).../general-template.php:41
41.317110436112load_template( ).../template.php:671
51.317510443616require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
61.317910444352wp_head( ).../header.php:22
71.317910444352do_action( ).../general-template.php:2879
81.317910444728WP_Hook->do_action( ).../plugin.php:478
91.317910444728WP_Hook->apply_filters( ).../class-wp-hook.php:312
101.344210533872do_signup_header( ).../class-wp-hook.php:288
111.344210533912do_action( ).../wp-signup.php:28
121.344210534288WP_Hook->do_action( ).../plugin.php:478
131.344210534288WP_Hook->apply_filters( ).../class-wp-hook.php:312
141.344210535416rbz_prevent_multisite_signup( ).../class-wp-hook.php:288
151.344410535480wp_redirect( ).../no-signup.php:9
161.350310519976header ( ).../pluggable.php:1265

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php:16) in /var/www/wordpress-multisite/wp-includes/pluggable.php on line 1268
Call Stack
#TimeMemoryFunctionLocation
10.0027528288{main}( ).../wp-signup.php:0
21.317010435576get_header( ).../wp-signup.php:79
31.317010436000locate_template( ).../general-template.php:41
41.317110436112load_template( ).../template.php:671
51.317510443616require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
61.317910444352wp_head( ).../header.php:22
71.317910444352do_action( ).../general-template.php:2879
81.317910444728WP_Hook->do_action( ).../plugin.php:478
91.317910444728WP_Hook->apply_filters( ).../class-wp-hook.php:312
101.344210533872do_signup_header( ).../class-wp-hook.php:288
111.344210533912do_action( ).../wp-signup.php:28
121.344210534288WP_Hook->do_action( ).../plugin.php:478
131.344210534288WP_Hook->apply_filters( ).../class-wp-hook.php:312
141.344210535416rbz_prevent_multisite_signup( ).../class-wp-hook.php:288
151.344410535480wp_redirect( ).../no-signup.php:9
161.350510520000header ( ).../pluggable.php:1268