diff --git a/src/puppet-padchat/config.ts b/src/puppet-padchat/config.ts
index aa3780bdc5b8d7f5aa1dace30dd519f6eea4439e..07a390bc9df0df5bbec94122fe0de0be716e8006 100644
--- a/src/puppet-padchat/config.ts
+++ b/src/puppet-padchat/config.ts
@@ -1,2 +1,25 @@
+import {
+  log,
+}             from 'brolog'
+
 export const WECHATY_PUPPET_PADCHAT_ENDPOINT = process.env['WECHATY_PUPPET_PADCHAT_ENDPOINT']  || 'ws://54.223.36.77:9091/wx'
-export const WECHATY_PUPPET_PADCHAT_TOKEN    = process.env['WECHATY_PUPPET_PADCHAT_TOKEN']     || 'padchattest'
+
+const WECHATY_PUPPET_PADCHAT_TOKEN = process.env['WECHATY_PUPPET_PADCHAT_TOKEN'] as string
+if (!WECHATY_PUPPET_PADCHAT_TOKEN) {
+  log.error('PuppetPadchatConfig', `
+
+    WECHATY_PUPPET_PADCHAT_TOKEN environment variable not found.
+
+    PuppetPadchat need a token before it can be used,
+    Please set WECHATY_PUPPET_PADCHAT_TOKEN then retry again.
+
+
+    Learn more about it at: https://github.com/Chatie/wechaty/issues/1296
+
+  `)
+  process.exit(1)
+}
+
+export {
+  WECHATY_PUPPET_PADCHAT_TOKEN,
+}
diff --git a/src/puppet-padchat/padchat-rpc.ts b/src/puppet-padchat/padchat-rpc.ts
index fe1686e7ed1f49bd9d36849dac955152d2f1251f..16976325d4fbe2f1c38d4c014093ba120648319e 100644
--- a/src/puppet-padchat/padchat-rpc.ts
+++ b/src/puppet-padchat/padchat-rpc.ts
@@ -311,7 +311,7 @@ export class PadchatRpc extends EventEmitter {
   /**
    * Init with WebSocket Server
    */
-  public async init(): Promise<InitType> {
+  protected async init(): Promise<InitType> {
     const result: InitType = await this.rpcCall('init')
     log.silly('PadchatRpc', 'init result: %s', JSON.stringify(result))
     if (!result || result.status !== 0) {
@@ -323,7 +323,7 @@ export class PadchatRpc extends EventEmitter {
   /**
    * Get WX block memory
    */
-  public async WXInitialize(): Promise<WXInitializeType> {
+  protected async WXInitialize(): Promise<WXInitializeType> {
     log.verbose('PadchatRpc', 'WXInitialize()')
 
     const result = await this.rpcCall('WXInitialize')
@@ -335,7 +335,7 @@ export class PadchatRpc extends EventEmitter {
     return result
   }
 
-  public async WXGetQRCode(): Promise<WXGetQRCodeType> {
+  protected async WXGetQRCode(): Promise<WXGetQRCodeType> {
     const result = await this.rpcCall('WXGetQRCode')
     // if (!result || !(result.qr_code)) {
     //   result = await this.WXGetQRCodeTwice()
@@ -386,6 +386,9 @@ export class PadchatRpc extends EventEmitter {
 
   /**
    * Generate 62 data
+   *
+   * 1. Call multiple times in the same session, will return the same data
+   * 2. Call multiple times between sessions with the same token, will return the same data
    */
   public async WXGenerateWxDat(): Promise<string> {
     const result: WXGenerateWxDatType = await this.rpcCall('WXGenerateWxDat')
diff --git a/src/puppet-padchat/puppet-padchat.ts b/src/puppet-padchat/puppet-padchat.ts
index a3258b71f0a8643d1b1d1efda36dbe5772babcbc..d3118efb74941ecbcdb102750a29ed5a8bc11411 100644
--- a/src/puppet-padchat/puppet-padchat.ts
+++ b/src/puppet-padchat/puppet-padchat.ts
@@ -101,7 +101,7 @@ export class PuppetPadchat extends Puppet {
       max: 1000,
       // length: function (n) { return n * 2},
       dispose: function (key: string, val: any) {
-        log.silly('Puppet', 'constructor() lruOptions.dispose(%s, %s)', key, JSON.stringify(val))
+        log.silly('PuppetPadchat', 'constructor() lruOptions.dispose(%s, %s)', key, JSON.stringify(val))
       },
       maxAge: 1000 * 60 * 60,
     }
@@ -113,8 +113,8 @@ export class PuppetPadchat extends Puppet {
 
     this.bridge = new Bridge({
       memory   : this.options.memory,
-      token   : WECHATY_PUPPET_PADCHAT_TOKEN,
-      endpoint: WECHATY_PUPPET_PADCHAT_ENDPOINT,
+      token    : WECHATY_PUPPET_PADCHAT_TOKEN,
+      endpoint : WECHATY_PUPPET_PADCHAT_ENDPOINT,
     })
   }