docs(FAQ,deployment-guide): update, typo fix (#312)

Co-authored-by: Rongrong <[email protected]>

docs/FAQ.md

@@ -36,7 +36,11 @@ Using the bot in a group is possible even if you don't have the multi-user mode
 If you want to allow a certain user to use the bot, send `/user_info user_id` or `/user_info @username` to the bot and promote their to "User".  
 If you want to allow a certain channel/group to use the bot, you should promote both the channel/group itself and at least one of its administrators to "User". Only the promoted administrators can operate the bot in the channel/group.
 
-### **Q**: why did the bot automatically leave my channel/group?
+### **Q**: Why did the bot automatically leave my channel/group?
 
 **A**: Once the bot finds itself lacking the permission to send messages (not granted or being blocked), it will immediately unsubscribe all subscriptions in this chat. Meanwhile, if this chat is a channel or group and the bot is still a member of it, it will leave the channel/group.
 Make sure to grant the bot enough permission (sending messages) in channel/group.
+
+### **Q**: My bot is not responding. I checked the log and saw Telethon complaining "Server sent a very new message with ID...", "Server replied with a wrong session ID...", or "Could not find a matching Constructor ID for the TLObject...".
+
+**A:** Telethon is protecting you from potential attacks. For details, please refer to [Telethon FAQ](https://docs.telethon.dev/en/stable/quick-references/faq.html#what-does-server-sent-a-very-new-message-with-id-mean). If you believe that it is caused by misconfiguration instead of attacks, and the bot is not deployed on a PaaS platform (e.g. Heroku, Railway), you may stop RSStT, delete the session file (`config/bot.session`), and restart it to solve the problem.

docs/FAQ.zh.md

@@ -36,7 +36,11 @@
 如果你想要允许某个用户使用 bot，向 bot 发送 `/user_info 用户ID` 或 `/user_info @用户名`，然后将他提升为「用户」。  
 如果你想要允许某个频道/群组使用 bot，你需要将频道/群组本身和至少一位它的管理员提升为提升为「用户」。只有被提升的管理员才可以在频道/群组里操作 bot。
 
-### **Q**: 为什么机器人自动退出了我的频道/群组？
+### **Q**: 为什么 bot 自动退出了我的频道/群组？
 
-**A**: 一旦机器人发现自身缺乏发送消息的权限（未授予或被屏蔽），它将立即退订该聊天中的所有订阅。与此同时，如果该聊天是频道或群组且机器人仍是成员，它将退出该频道/群组。
-确保在群组/频道中授予机器人足够的权限（发送消息）。
+**A**: 一旦 bot 发现自身缺乏发送消息的权限（未授予或被屏蔽），它将立即退订该聊天中的所有订阅。与此同时，如果该聊天是频道或群组且 bot 仍是成员，它将退出该频道/群组。
+确保在群组/频道中授予 bot 足够的权限（发送消息）。
+
+### **Q**: 我的 bot 无响应。查看日志后发现 Telethon 在抱怨 "Server sent a very new message with ID..."，"Server replied with a wrong session ID..."，或者 "Could not find a matching Constructor ID for the TLObject..."。
+
+**A**: Telethon 正保护您免受潜在的攻击。欲知详情，请参阅 [Telethon FAQ](https://docs.telethon.dev/en/stable/quick-references/faq.html#what-does-server-sent-a-very-new-message-with-id-mean)。如果你确信问题并非由攻击引起，而只是由错误的配置引发，且 bot 并非部署于 PaaS 平台上（如 Heroku, Railway），你可以通过停止 RSStT，删除会话文件（`config/bot.session`），然后重启 RSStT 以解决这个问题。

docs/deployment-guide.md

@@ -148,7 +148,7 @@ python3 -m rsstt
 git clone https://github.com/Rongronggg9/RSS-to-Telegram-Bot.git
 cd RSS-to-Telegram-Bot
 pip3 install -r requirements.txt
-cp .env.example .env
+cp .env.sample .env
 vi .env  # fill in env variables
 python3 -u telegramRSSbot.py
 ```