( ! ) 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
10.0001354160{main}( ).../wp-signup.php:0
20.64248977200get_header( ).../wp-signup.php:79
30.64248977624locate_template( ).../general-template.php:41
40.64258977736load_template( ).../template.php:653
50.64258978168require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:704
60.64278978904wp_head( ).../header.php:22
70.64278978904do_action( ).../general-template.php:2668
80.64278979280WP_Hook->do_action( ).../plugin.php:465
90.64278979280WP_Hook->apply_filters( ).../class-wp-hook.php:310
100.66739064272do_signup_header( ).../class-wp-hook.php:286
110.66739064272do_action( ).../wp-signup.php:28
120.66739064648WP_Hook->do_action( ).../plugin.php:465
130.66739064648WP_Hook->apply_filters( ).../class-wp-hook.php:310
140.66739065776rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
150.66749065840wp_redirect( ).../no-signup.php:9
160.67359050336header ( ).../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
10.0001354160{main}( ).../wp-signup.php:0
20.64248977200get_header( ).../wp-signup.php:79
30.64248977624locate_template( ).../general-template.php:41
40.64258977736load_template( ).../template.php:653
50.64258978168require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:704
60.64278978904wp_head( ).../header.php:22
70.64278978904do_action( ).../general-template.php:2668
80.64278979280WP_Hook->do_action( ).../plugin.php:465
90.64278979280WP_Hook->apply_filters( ).../class-wp-hook.php:310
100.66739064272do_signup_header( ).../class-wp-hook.php:286
110.66739064272do_action( ).../wp-signup.php:28
120.66739064648WP_Hook->do_action( ).../plugin.php:465
130.66739064648WP_Hook->apply_filters( ).../class-wp-hook.php:310
140.66739065776rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
150.66749065840wp_redirect( ).../no-signup.php:9
160.67409050360header ( ).../pluggable.php:1254