Warning (2) : file_get_contents(http://ip-api.com/php/57.141.6.37): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests [in /var/www/mapa.conflictosmineros.net/ocmal_db-v2/src/Controller/AppController.php, line 239]
Warning (512) : Unable to emit headers. Headers sent in file=/var/www/mapa.conflictosmineros.net/ocmal_db-v2/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php line=37 [in /var/www/mapa.conflictosmineros.net/ocmal_db-v2/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 71]
Warning (2) : Cannot modify header information - headers already sent by (output started at /var/www/mapa.conflictosmineros.net/ocmal_db-v2/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php:37) [in /var/www/mapa.conflictosmineros.net/ocmal_db-v2/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 164]
Warning (2) : Cannot modify header information - headers already sent by (output started at /var/www/mapa.conflictosmineros.net/ocmal_db-v2/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php:37) [in /var/www/mapa.conflictosmineros.net/ocmal_db-v2/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 197]
Error: Could not start the session, headers already sent in file `CORE/src/Error/Renderer/HtmlErrorRenderer.php` on line `37`

Could not start the session, headers already sent in file CORE/src/Error/Renderer/HtmlErrorRenderer.php on line 37 📋

Cake\Core\Exception\CakeException
CORE/src/Http/Session.php at line 518 (edit)
                    $this->headerSentInfo['line']
                );
            }
            throw new CakeException($message);
        }
        if (!is_array($name)) {
            $name = [$name => $value];

If you want to customize this error message, create templates/Error/error500.ctp