diff --git a/常见问题.md b/常见问题.md
index 630b7c8..e580aca 100644
--- a/常见问题.md
+++ b/常见问题.md
@@ -1,16 +1,41 @@
 ## 程序运行相关
 
-### 1. cURL error 60: SSL certificate problem
+### 1. Class 'GuzzleHttp\Client' not found
 
 #### 错误
 
 程序启动时出现错误如下，
 
 ```
-[202X-XX-XX XX:XX:XX]  Log.WARNING CURl -> RETRY: 0 ERROR: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) ERRNO: 0
-[202X-XX-XX XX:XX:XX]  Log.WARNING 尝试重试第 0 次，等待网络恢复...
-[202X-XX-XX XX:XX:XX]  Log.WARNING CURl -> RETRY: 1 ERROR: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) ERRNO: 0
-[202X-XX-XX XX:XX:XX]  Log.WARNING 尝试重试第 1 次，等待网络恢复...
+[202X-XX-XX XX:XX:XX] Bilibili.ERROR: MSG: Class 'GuzzleHttp\Client' not found CODE: 0 FILE: ...\src\core\Curl.php LINE: 209
+[202X-XX-XX XX:XX:XX] Bilibili.ERROR: MSG: Class 'GuzzleHttp\Client' not found CODE: 0 FILE: ...\src\core\Curl.php LINE: 209
+[202X-XX-XX XX:XX:XX] Bilibili.ERROR: MSG: Class 'GuzzleHttp\Client' not found CODE: 0 FILE: ...\src\core\Curl.php LINE: 209
+[202X-XX-XX XX:XX:XX] Bilibili.INFO: 开始启动程序...
+```
+
+#### 原因
+
+未运行 Composer 获取运行相关依赖包
+
+#### 解决
+
+确认已经安装好 Composer, 在程序根目录运行命令 `composer install`
+
+PS. 如果你觉得仍然有问题，可以删除程序根目录下 `vendor` 文件夹和 `composer.lock` 文件，并在程序根目录下重新运行命令 `composer clearcache` 和 `composer install`
+
+---
+
+### 2. cURL error 60: SSL certificate problem
+
+#### 错误
+
+程序启动时出现错误如下，
+
+```
+[202X-XX-XX XX:XX:XX] Log.WARNING CURl -> RETRY: 0 ERROR: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) ERRNO: 0 STATUS:  Waiting for recovery!
+[202X-XX-XX XX:XX:XX] Log.WARNING CURl -> RETRY: 1 ERROR: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) ERRNO: 0 STATUS:  Waiting for recovery!
+[202X-XX-XX XX:XX:XX] Log.WARNING CURl -> RETRY: 2 ERROR: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) ERRNO: 0 STATUS:  Waiting for recovery!
+[202X-XX-XX XX:XX:XX] Log.WARNING CURl -> RETRY: 3 ERROR: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) ERRNO: 0 STATUS:  Waiting for recovery!
 ```
 
 #### 原因
@@ -28,7 +53,47 @@ VERIFY_SSL=false
 
 ---
 
-### 2. Fail to parse dotenv file due to invalid name
+### 3. 检查令牌失败、重新生成令牌失败、空白的账号和口令、
+
+#### 错误
+
+程序启动时出现错误如下，
+
+```
+[202X-XX-XX XX:XX:XX] Bilibili.INFO: 开始启动程序...
+[202X-XX-XX XX:XX:XX] Bilibili.INFO: 正在检查令牌合法性...
+[202X-XX-XX XX:XX:XX] Bilibili.ERROR: 检查令牌失败 {"msg":"user not login"}
+[202X-XX-XX XX:XX:XX] Bilibili.WARNING: 令牌即将过期
+[202X-XX-XX XX:XX:XX] Bilibili.INFO: 申请更换令牌中...
+[202X-XX-XX XX:XX:XX] Bilibili.ERROR: 重新生成令牌失败 {"msg":"user not login"}
+[202X-XX-XX XX:XX:XX] Bilibili.WARNING: 无效令牌，正在重新申请...
+[202X-XX-XX XX:XX:XX] Bilibili.ERROR: 空白的账号和口令！
+```
+
+#### 原因
+
+配置文件 `user.conf` 中输入了错误输入了令牌相关信息，或输入了错误的账号和密码，或没有输入账号和密码
+
+#### 解决
+
+修改配置文件 `user.conf` 中的 `APP_USER` 和 `APP_PASS` 为你的账号和密码，请勿尝试 `ACCESS_TOKEN`, `REFRESH_TOKEN` 和 `COOKIE` 后面自行填入参数
+
+以账号 `laozi@example.com` 和密码 `laozidemima` 为例，输入应该如下所示
+
+```
+# 帐号|密码
+APP_USER=laozi@example.com
+APP_PASS=laozidemima
+
+# 令牌(自动生成)
+ACCESS_TOKEN=
+REFRESH_TOKEN=
+COOKIE=
+```
+
+---
+
+### 4. Fail to parse dotenv file due to invalid name
 
 #### 错误
 
@@ -46,7 +111,7 @@ PHP Fatal error: Uncaught Dotenv\Exception\InvalidFileException: Failed to parse
 
 ---
 
-### 3. pcntl_signal_dispatch() has been disabled for security reasons
+### 5. pcntl_signal_dispatch() has been disabled for security reasons
 
 #### 错误
 
@@ -65,7 +130,7 @@ PHP Warning: pcntl_signal_dispatch() has been disabled for security reasons in .
 
 ---
 
-### 4.
+### 6.
 
 #### 错误