( ! ) 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
10.0017503000{main}( ).../wp-signup.php:0
20.64079862744get_header( ).../wp-signup.php:79
30.64079863168locate_template( ).../general-template.php:41
40.64089863280load_template( ).../template.php:671
50.64109870784require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
60.64139871520wp_head( ).../header.php:22
70.64149871520do_action( ).../general-template.php:2745
80.64149871896WP_Hook->do_action( ).../plugin.php:465
90.64149871896WP_Hook->apply_filters( ).../class-wp-hook.php:310
100.660810024064do_signup_header( ).../class-wp-hook.php:286
110.660810024104do_action( ).../wp-signup.php:28
120.660810024480WP_Hook->do_action( ).../plugin.php:465
130.660810024480WP_Hook->apply_filters( ).../class-wp-hook.php:310
140.660910025608rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
150.660910025672wp_redirect( ).../no-signup.php:9
160.666510010168header ( ).../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
10.0017503000{main}( ).../wp-signup.php:0
20.64079862744get_header( ).../wp-signup.php:79
30.64079863168locate_template( ).../general-template.php:41
40.64089863280load_template( ).../template.php:671
50.64109870784require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
60.64139871520wp_head( ).../header.php:22
70.64149871520do_action( ).../general-template.php:2745
80.64149871896WP_Hook->do_action( ).../plugin.php:465
90.64149871896WP_Hook->apply_filters( ).../class-wp-hook.php:310
100.660810024064do_signup_header( ).../class-wp-hook.php:286
110.660810024104do_action( ).../wp-signup.php:28
120.660810024480WP_Hook->do_action( ).../plugin.php:465
130.660810024480WP_Hook->apply_filters( ).../class-wp-hook.php:310
140.660910025608rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
150.660910025672wp_redirect( ).../no-signup.php:9
160.666710010192header ( ).../pluggable.php:1254