diff --git a/src/database/database.rs b/src/database/database.rs
index b4e6c68..f68cd1b 100644
--- a/src/database/database.rs
+++ b/src/database/database.rs
@@ -13,11 +13,15 @@ impl Database {
     }
 
     pub async fn get_user_config(&mut self, user_id: u64) -> redis::RedisResult<Option<UserConfig>> {
-        let config: String = self.client.get_connection().unwrap().get(format!("discord_user:{}", user_id)).unwrap_or_default();
+        if let Ok(connection) = self.client.get_connection() {
+            let config: String = connection.get(format!("discord_user:{}", user_id)).unwrap_or_default();
 
-        match serde_json::from_str(&config) {
-            Ok(config) => Ok(Some(config)),
-            Err(_) => Ok(None)
+            match serde_json::from_str(&config) {
+                Ok(config) => Ok(Some(config)),
+                Err(_) => Ok(None)
+            }
+        } else {
+            Ok(None)
         }
     }
 
diff --git a/src/events/voice_state_update.rs b/src/events/voice_state_update.rs
index 5a0ecf7..a9e5656 100644
--- a/src/events/voice_state_update.rs
+++ b/src/events/voice_state_update.rs
@@ -8,6 +8,9 @@ pub async fn voice_state_update(
     old: Option<VoiceState>,
     new: VoiceState,
 ) {
+    if new.member.unwrap().user.bot {
+        return;
+    }
     let guild_id = guild_id.unwrap();
 
     let storage_lock = {
diff --git a/src/implement/message.rs b/src/implement/message.rs
index 227b35a..c467bb7 100644
--- a/src/implement/message.rs
+++ b/src/implement/message.rs
@@ -19,7 +19,7 @@ use crate::{
 impl TTSMessage for Message {
     async fn parse(&self, instance: &mut TTSInstance, _: &Context) -> String {
         let text = validator::remove_url(self.content.clone());
-        let res = if let Some(before_message) = &instance.before_message {
+        let mut res = if let Some(before_message) = &instance.before_message {
             if before_message.author.id == self.author.id {
                 text.clone()
             } else {
@@ -41,6 +41,10 @@ impl TTSMessage for Message {
             format!("{}さんの発言<break time=\"200ms\"/>{}", name, text)
         };
 
+        if self.attachments.len() > 0 {
+            res = format!("{}<break time=\"200ms\"/>{}個の添付ファイル", res, self.attachments.len());
+        }
+
         instance.before_message = Some(self.clone());
 
         res