接口配置失败

[Lujidev]

我用的环境

PHP 版本：7.0
overtrue/wechat 版本：3.1

问题及现象

大家好，

小白来问一个问题， 关于接口配置，

目前server.php里就

<?php
include __DIR__ . '/vendor/autoload.php'; // 引入 composer 入口文件
use EasyWeChat\Foundation\Application;
$options = [
    'debug'  => true,
    'app_id' => '我的appid',
    'secret' => '我的secretid',
    'token'  => 'easywechat',

    'log' => [
        'level' => 'debug',
        'file'  => '/tmp/easywechat.log', 
    ],
    //...
];
$app = new Application($options);
$response = $app->server->serve();
// 将响应输出
$response->send(); // Laravel 里请使用：return $response;

错误是:

Strict Standards: date_default_timezone_get(): 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 'Europe/Berlin' for 'CEST/2.0/DST' instead in /homepages/3/d598322129/htdocs/wxapi/vendor/monolog/monolog/src/Monolog/Logger.php on line 311

Fatal error: Uncaught exception 'EasyWeChat\Server\BadRequestException' with message 'Invalid request.' in /homepages/3/d598322129/htdocs/wxapi/vendor/overtrue/wechat/src/Server/Guard.php:343 Stack trace: #0 /homepages/3/d598322129/htdocs/wxapi/vendor/overtrue/wechat/src/Server/Guard.php(359): EasyWeChat\Server\Guard->getMessage() #1 /homepages/3/d598322129/htdocs/wxapi/vendor/overtrue/wechat/src/Server/Guard.php(156): EasyWeChat\Server\Guard->handleRequest() #2 /homepages/3/d598322129/htdocs/wxapi/server.php(17): EasyWeChat\Server\Guard->serve() #3 {main} thrown in /homepages/3/d598322129/htdocs/wxapi/vendor/overtrue/wechat/src/Server/Guard.php on line 343

目前文件夹里就：
composer.json
composer.lock
composer.phar
server.php
vendor

公众平台那边是 http://我的网站/server.php

我本来已经开始用官方的文档开始， 还可以只是麻烦了一点， 半路发现easywechat 希望使用这个让代码更简单干净。