CakePHP: the rapid development php framework: Errors

Warning (2): date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. [CORE/Cake/Log/Engine/FileLog.php, line 134]

Code Context

 */
    public function write($type, $message) {
        $output = date('Y-m-d H:i:s') . ' ' . ucfirst($type) . ': ' . $message . "\n";

$type = 'error'
$message = '[MissingControllerException] Controller class Sitemap.xmlController could not be found.
Exception Attributes: array (
  'class' => 'Sitemap.xmlController',
  'plugin' => NULL,
)
Request URL: /sitemap.xml?url=sitemap.xml
Stack Trace:
#0 /home/bizfile2020/dental-biz.biz/public_html/index.php(111): Dispatcher->dispatch(Object(CakeRequest), Object(CakeResponse))
#1 {main}'

date - [internal], line ??
FileLog::write() - CORE/Cake/Log/Engine/FileLog.php, line 134
CakeLog::write() - CORE/Cake/Log/CakeLog.php, line 452
ErrorHandler::_log() - CORE/Cake/Error/ErrorHandler.php, line 178
ErrorHandler::handleException() - CORE/Cake/Error/ErrorHandler.php, line 111
[main] - [internal], line ??

Missing Controller

Error: Sitemap.xmlController could not be found.

Error: Create the class Sitemap.xmlController below in file: app/Controller/Sitemap.xmlController.php

<?php
class Sitemap.xmlController extends AppController {

}

Notice: If you want to customize this error message, create app/View/Errors/missing_controller.ctp

Stack Trace

/home/bizfile2020/dental-biz.biz/public_html/index.php line 111 → Dispatcher->dispatch(CakeRequest, CakeResponse)

$Dispatcher->dispatch(
    new CakeRequest(),
    new CakeResponse()
);

object(CakeRequest) {
	params => array(
		[maximum depth reached]
	)
	data => array([maximum depth reached])
	query => array(
		[maximum depth reached]
	)
	url => 'sitemap.xml'
	base => ''
	webroot => '/'
	here => '/sitemap.xml'
	[protected] _detectors => array(
		[maximum depth reached]
	)
	[protected] _input => ''
}
object(CakeResponse) {
	[protected] _statusCodes => array(
		[maximum depth reached]
	)
	[protected] _mimeTypes => array(
		[maximum depth reached]
	)
	[protected] _protocol => 'HTTP/1.1'
	[protected] _status => (int) 200
	[protected] _contentType => 'text/html'
	[protected] _headers => array([maximum depth reached])
	[protected] _body => null
	[protected] _file => null
	[protected] _fileRange => null
	[protected] _charset => 'UTF-8'
	[protected] _cacheDirectives => array([maximum depth reached])
	[protected] _cookies => array([maximum depth reached])
}