( ! ) 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
10.0013503000{main}( ).../wp-signup.php:0
20.251412854840get_header( ).../wp-signup.php:79
30.251412855264locate_template( ).../general-template.php:41
40.251412855376load_template( ).../template.php:671
50.251512855840require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
60.251712856576wp_head( ).../header.php:22
70.251712856576do_action( ).../general-template.php:2745
80.251712856952WP_Hook->do_action( ).../plugin.php:465
90.251712856952WP_Hook->apply_filters( ).../class-wp-hook.php:310
100.275912957616do_signup_header( ).../class-wp-hook.php:286
110.275912957656do_action( ).../wp-signup.php:28
120.276212958032WP_Hook->do_action( ).../plugin.php:465
130.276212958032WP_Hook->apply_filters( ).../class-wp-hook.php:310
140.276212959160rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
150.276312959224wp_redirect( ).../no-signup.php:9
160.283412943760header ( ).../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
10.0013503000{main}( ).../wp-signup.php:0
20.251412854840get_header( ).../wp-signup.php:79
30.251412855264locate_template( ).../general-template.php:41
40.251412855376load_template( ).../template.php:671
50.251512855840require_once( '/var/www/wordpress-multisite/wp-content/themes/twentyseventeen/header.php' ).../template.php:722
60.251712856576wp_head( ).../header.php:22
70.251712856576do_action( ).../general-template.php:2745
80.251712856952WP_Hook->do_action( ).../plugin.php:465
90.251712856952WP_Hook->apply_filters( ).../class-wp-hook.php:310
100.275912957616do_signup_header( ).../class-wp-hook.php:286
110.275912957656do_action( ).../wp-signup.php:28
120.276212958032WP_Hook->do_action( ).../plugin.php:465
130.276212958032WP_Hook->apply_filters( ).../class-wp-hook.php:310
140.276212959160rbz_prevent_multisite_signup( ).../class-wp-hook.php:286
150.276312959224wp_redirect( ).../no-signup.php:9
160.283612943784header ( ).../pluggable.php:1254