Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138) (500 Internal Server Error)

Exception

ErrorException

in /home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php (line 1713)

in /home/carreauf/staging/web/app/themes/lecarreau2k22/vendor/roots/acorn/src/Roots/Acorn/Bootstrap/HandleExceptions.php -> handleError (line 54)

HandleExceptions->handleError(2, 'Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)', '/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php', 1713)

header('Content-Type: application/json; charset=UTF-8') in /home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php (line 1713)

WP_REST_Server->send_header('Content-Type', 'application/json; charset=UTF-8') in /home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php (line 282)

WP_REST_Server->serve_request('/') in /home/carreauf/staging/web/wp/wp-includes/rest-api.php (line 386)

rest_api_loaded(object(WP)) in /home/carreauf/staging/web/wp/wp-includes/class-wp-hook.php (line 307)

WP_Hook->apply_filters('', array(object(WP))) in /home/carreauf/staging/web/wp/wp-includes/class-wp-hook.php (line 331)

WP_Hook->do_action(array(object(WP))) in /home/carreauf/staging/web/wp/wp-includes/plugin.php (line 522)

do_action_ref_array('parse_request', array(object(WP))) in /home/carreauf/staging/web/wp/wp-includes/class-wp.php (line 396)

WP->parse_request('') in /home/carreauf/staging/web/wp/wp-includes/class-wp.php (line 758)

WP->main('') in /home/carreauf/staging/web/wp/wp-includes/functions.php (line 1310)

wp() in /home/carreauf/staging/web/wp/wp-blog-header.php (line 16)

require('/home/carreauf/staging/web/wp/wp-blog-header.php') in /home/carreauf/staging/web/index.php (line 5)

<?php

/** WordPress view bootstrapper */
define('WP_USE_THEMES', true);
require __DIR__ . '/wp/wp-blog-header.php';

Stack Trace

ErrorException
ErrorException: Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138) at /home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php:1713 at Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)', '/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php', 1713, array()) (/home/carreauf/staging/web/app/themes/lecarreau2k22/vendor/roots/acorn/src/Roots/Acorn/Bootstrap/HandleExceptions.php:54) at Roots\Acorn\Bootstrap\HandleExceptions->handleError(2, 'Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)', '/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php', 1713) at header('Content-Type: application/json; charset=UTF-8') (/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php:1713) at WP_REST_Server->send_header('Content-Type', 'application/json; charset=UTF-8') (/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php:282) at WP_REST_Server->serve_request('/') (/home/carreauf/staging/web/wp/wp-includes/rest-api.php:386) at rest_api_loaded(object(WP)) (/home/carreauf/staging/web/wp/wp-includes/class-wp-hook.php:307) at WP_Hook->apply_filters('', array(object(WP))) (/home/carreauf/staging/web/wp/wp-includes/class-wp-hook.php:331) at WP_Hook->do_action(array(object(WP))) (/home/carreauf/staging/web/wp/wp-includes/plugin.php:522) at do_action_ref_array('parse_request', array(object(WP))) (/home/carreauf/staging/web/wp/wp-includes/class-wp.php:396) at WP->parse_request('') (/home/carreauf/staging/web/wp/wp-includes/class-wp.php:758) at WP->main('') (/home/carreauf/staging/web/wp/wp-includes/functions.php:1310) at wp() (/home/carreauf/staging/web/wp/wp-blog-header.php:16) at require('/home/carreauf/staging/web/wp/wp-blog-header.php') (/home/carreauf/staging/web/index.php:5)

ErrorException

ErrorException:
Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)

  at /home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php:1713
  at Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)', '/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php', 1713, array())
     (/home/carreauf/staging/web/app/themes/lecarreau2k22/vendor/roots/acorn/src/Roots/Acorn/Bootstrap/HandleExceptions.php:54)
  at Roots\Acorn\Bootstrap\HandleExceptions->handleError(2, 'Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)', '/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php', 1713)
  at header('Content-Type: application/json; charset=UTF-8')
     (/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php:1713)
  at WP_REST_Server->send_header('Content-Type', 'application/json; charset=UTF-8')
     (/home/carreauf/staging/web/wp/wp-includes/rest-api/class-wp-rest-server.php:282)
  at WP_REST_Server->serve_request('/')
     (/home/carreauf/staging/web/wp/wp-includes/rest-api.php:386)
  at rest_api_loaded(object(WP))
     (/home/carreauf/staging/web/wp/wp-includes/class-wp-hook.php:307)
  at WP_Hook->apply_filters('', array(object(WP)))
     (/home/carreauf/staging/web/wp/wp-includes/class-wp-hook.php:331)
  at WP_Hook->do_action(array(object(WP)))
     (/home/carreauf/staging/web/wp/wp-includes/plugin.php:522)
  at do_action_ref_array('parse_request', array(object(WP)))
     (/home/carreauf/staging/web/wp/wp-includes/class-wp.php:396)
  at WP->parse_request('')
     (/home/carreauf/staging/web/wp/wp-includes/class-wp.php:758)
  at WP->main('')
     (/home/carreauf/staging/web/wp/wp-includes/functions.php:1310)
  at wp()
     (/home/carreauf/staging/web/wp/wp-blog-header.php:16)
  at require('/home/carreauf/staging/web/wp/wp-blog-header.php')
     (/home/carreauf/staging/web/index.php:5)

Symfony Exception

ErrorException

HTTP 500 Internal Server Error

Cannot modify header information - headers already sent by (output started at /home/carreauf/staging/web/app/plugins/advanced-custom-fields-pro/includes/fields.php:138)

Exception

ErrorException

Stack Trace