diff --git a/configs/config.go b/configs/config.go
index 588a707..204e71c 100644
--- a/configs/config.go
+++ b/configs/config.go
@@ -8,7 +8,6 @@ import (
 	"github.com/joho/godotenv"
 )
 
-
 type botConfig struct {
 	Token   string
 	Prefix  string
@@ -29,23 +28,35 @@ type MuffinConfig struct {
 func loadConfig() *MuffinConfig {
 	err := godotenv.Load()
 	if err != nil {
-		fmt.Println("[goMuffin] 봇의 설절파일을 불러올 수가 없어요.")
+		log.Println("[goMuffin] 봇의 설절파일을 불러올 수가 없어요.")
 		log.Fatalln(err)
 	}
-	config := MuffinConfig{Bot: botConfig{}, Train: trainConfig{}}
-	setConfig(&config)
+	config := &MuffinConfig{Bot: botConfig{}, Train: trainConfig{}}
+	setConfig(config)
 
-	return &config
+	return config
+}
+
+func getRequiredValue(key string) string {
+	value := os.Getenv(key)
+	if value == "" {
+		log.Fatalln(fmt.Sprintf("[goMuffin] .env 파일에서 필요한 %s값이 없어요.", key))
+	}
+	return value
+}
+
+func getValue(key string) string {
+	return os.Getenv(key)
 }
 
 func setConfig(config *MuffinConfig) {
-	config.Bot.Prefix = os.Getenv("BOT_PREFIX")
-	config.Bot.Token = os.Getenv("BOT_TOKEN")
-	config.Bot.OwnerId = os.Getenv("BOT_OWNER_ID")
+	config.Bot.Prefix = getRequiredValue("BOT_PREFIX")
+	config.Bot.Token = getRequiredValue("BOT_TOKEN")
+	config.Bot.OwnerId = getRequiredValue("BOT_OWNER_ID")
 
-	config.Train.UserID = os.Getenv("TRAIN_USER_ID")
+	config.Train.UserID = getValue("TRAIN_USER_ID")
 
-	config.DatabaseURL = os.Getenv("DATABASE_URL")
+	config.DatabaseURL = getRequiredValue("DATABASE_URL")
 }
 
 var Config *MuffinConfig = loadConfig()
diff --git a/configs/version.go b/configs/version.go
index 1d1c395..7233033 100644
--- a/configs/version.go
+++ b/configs/version.go
@@ -7,7 +7,7 @@ import (
 	"git.wh64.net/muffin/goMuffin/utils"
 )
 
-const MUFFIN_VERSION = "0.0.0-gopher_canary.250331b"
+const MUFFIN_VERSION = "0.0.0-gopher_dev.250403a"
 
 var updatedString string = utils.Decimals.FindAllStringSubmatch(MUFFIN_VERSION, -1)[3][0]
 
diff --git a/main.go b/main.go
index 6f24788..cf7aece 100644
--- a/main.go
+++ b/main.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"context"
-	"fmt"
 	"log"
 	"os"
 	"os/signal"
@@ -22,7 +21,7 @@ func main() {
 
 	dg, err := discordgo.New("Bot " + config.Bot.Token)
 	if err != nil {
-		fmt.Println("[goMuffin] 봇의 세션을 만들수가 없어요.")
+		log.Println("[goMuffin] 봇의 세션을 만들수가 없어요.")
 		log.Fatalln(err)
 	}
 
@@ -46,7 +45,7 @@ func main() {
 		}
 	}()
 
-	fmt.Println("[goMuffin] 봇이 실행되고 있어요. 버전:", configs.MUFFIN_VERSION)
+	log.Println("[goMuffin] 봇이 실행되고 있어요. 버전:", configs.MUFFIN_VERSION)
 	sc := make(chan os.Signal, 1)
 	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
 	<-sc