( ! ) 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 1251
Call Stack
#TimeMemoryFunctionLocation
10.0009503000{main}( ).../wp-signup.php:0
21.30939924184get_header( ).../wp-signup.php:79
31.30939924608locate_template( ).../general-template.php:41
41.30939924720load_template( ).../template.php:671
51.30949925152require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
61.30979925888wp_head( ).../header.php:22
71.30979925888do_action( ).../general-template.php:2745
81.30979926264WP_Hook->do_action( ).../plugin.php:465
91.30979926264WP_Hook->apply_filters( ).../class-wp-hook.php:310
101.430010078432do_signup_header( ).../class-wp-hook.php:286
111.430010078472do_action( ).../wp-signup.php:28
121.430010078848WP_Hook->do_action( ).../plugin.php:465
131.430010078848WP_Hook->apply_filters( ).../class-wp-hook.php:310
141.430110079976rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
151.430110080040wp_redirect( ).../no-signup.php:9
161.436410064536header ( ).../pluggable.php:1251

( ! ) 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 1254
Call Stack
#TimeMemoryFunctionLocation
10.0009503000{main}( ).../wp-signup.php:0
21.30939924184get_header( ).../wp-signup.php:79
31.30939924608locate_template( ).../general-template.php:41
41.30939924720load_template( ).../template.php:671
51.30949925152require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
61.30979925888wp_head( ).../header.php:22
71.30979925888do_action( ).../general-template.php:2745
81.30979926264WP_Hook->do_action( ).../plugin.php:465
91.30979926264WP_Hook->apply_filters( ).../class-wp-hook.php:310
101.430010078432do_signup_header( ).../class-wp-hook.php:286
111.430010078472do_action( ).../wp-signup.php:28
121.430010078848WP_Hook->do_action( ).../plugin.php:465
131.430010078848WP_Hook->apply_filters( ).../class-wp-hook.php:310
141.430110079976rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
151.430110080040wp_redirect( ).../no-signup.php:9
161.436510064560header ( ).../pluggable.php:1254