diff --git a/config/config.go b/config/config.go
index e2e15bc..c1330d8 100644
--- a/config/config.go
+++ b/config/config.go
@@ -92,19 +92,19 @@ func LoadConfig() (*Config, error) {
 	if err != nil {
 		return nil, err
 	}
-	fmt.Printf("Parsed Checkin start time: %v", parsedCheckinTime)
+	fmt.Printf("Parsed Checkin start time: %v\n", parsedCheckinTime)
 
 	parsedRpkmStartTime, err := parseLocalTime("REG_RPKM_START")
 	if err != nil {
 		return nil, err
 	}
-	fmt.Printf("Parsed RPKM start time: %v", parsedRpkmStartTime)
+	fmt.Printf("Parsed RPKM start time: %v\n", parsedRpkmStartTime)
 
 	parsedRpkmEndTime, err := parseLocalTime("REG_RPKM_END")
 	if err != nil {
 		return nil, err
 	}
-	fmt.Printf("Parsed RPKM end time: %v", parsedRpkmEndTime)
+	fmt.Printf("Parsed RPKM end time: %v\n", parsedRpkmEndTime)
 
 	regConfig := RegConfig{
 		CheckinStart: parsedCheckinTime,
diff --git a/internal/group/group.handler.go b/internal/group/group.handler.go
index 855b98c..5094e0e 100644
--- a/internal/group/group.handler.go
+++ b/internal/group/group.handler.go
@@ -52,11 +52,6 @@ type handlerImpl struct {
 // @Failure 500 {object} apperror.AppError
 // @Router /group/{userId} [get]
 func (h *handlerImpl) FindByUserId(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
-		return
-	}
-
 	userId := c.Param("userId")
 	if userId == "" {
 		c.BadRequestError("url parameter 'user_id' not found")
@@ -99,11 +94,6 @@ func (h *handlerImpl) FindByUserId(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /group/token [get]
 func (h *handlerImpl) FindByToken(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
-		return
-	}
-
 	token := c.Query("token")
 	if token == "" {
 		c.BadRequestError("url parameter 'token' not found")
@@ -143,8 +133,9 @@ func (h *handlerImpl) FindByToken(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /group/{userId} [put]
 func (h *handlerImpl) UpdateConfirm(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 
@@ -198,8 +189,9 @@ func (h *handlerImpl) UpdateConfirm(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /group/join [post]
 func (h *handlerImpl) Join(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 
@@ -248,8 +240,9 @@ func (h *handlerImpl) Join(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /group/leave [post]
 func (h *handlerImpl) Leave(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 
@@ -297,8 +290,9 @@ func (h *handlerImpl) Leave(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /group/delete-member [delete]
 func (h *handlerImpl) DeleteMember(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 
@@ -332,17 +326,17 @@ func (h *handlerImpl) DeleteMember(c context.Ctx) {
 	})
 }
 
-func (h *handlerImpl) checkRegTime() bool {
+func (h *handlerImpl) checkRegTime() (bool, string) {
 	nowUTC := time.Now().UTC()
 	gmtPlus7Location := time.FixedZone("GMT+7", 7*60*60)
 	nowGMTPlus7 := nowUTC.In(gmtPlus7Location)
 	if nowGMTPlus7.Before(h.regConf.RpkmStart) {
 		h.log.Named("checkRegTime").Warn("Forbidden: Registration hasn't started")
-		return false
+		return false, "Registration hasn't started"
 	} else if nowGMTPlus7.After(h.regConf.RpkmEnd) {
 		h.log.Named("checkRegTime").Warn("Forbidden: Registration has ended")
-		return false
+		return false, "Registration has ended"
 	}
 
-	return true
+	return true, ""
 }
diff --git a/internal/selection/selection.handler.go b/internal/selection/selection.handler.go
index 361f949..ef890de 100644
--- a/internal/selection/selection.handler.go
+++ b/internal/selection/selection.handler.go
@@ -55,8 +55,9 @@ func NewHandler(svc Service, groupSvc group.Service, regConf *config.RegConfig,
 // @Failure 500 {object} apperror.AppError
 // @Router /selection [post]
 func (h *handlerImpl) Create(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 	h.checkGroupLeader(c)
@@ -99,11 +100,6 @@ func (h *handlerImpl) Create(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /selection/{groupId} [get]
 func (h *handlerImpl) FindByGroupId(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
-		return
-	}
-
 	groupId := c.Param("groupId")
 	if groupId == "" {
 		h.log.Named("FindByGroupIdSelection").Error("Param: groupId not found")
@@ -147,8 +143,9 @@ func (h *handlerImpl) FindByGroupId(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /selection [patch]
 func (h *handlerImpl) Update(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 	h.checkGroupLeader(c)
@@ -194,8 +191,9 @@ func (h *handlerImpl) Update(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /selection [delete]
 func (h *handlerImpl) Delete(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
+	ok, msg := h.checkRegTime()
+	if !ok {
+		c.ForbiddenError(msg)
 		return
 	}
 	h.checkGroupLeader(c)
@@ -238,11 +236,6 @@ func (h *handlerImpl) Delete(c context.Ctx) {
 // @Failure 500 {object} apperror.AppError
 // @Router /selection/count-by-baan [get]
 func (h *handlerImpl) CountByBaanId(c context.Ctx) {
-	if !h.checkRegTime() {
-		c.ForbiddenError("Registration hasn't started")
-		return
-	}
-
 	res, appErr := h.svc.CountByBaanId()
 	if appErr != nil {
 		h.log.Named("CountByBaanId").Error("CountByBaanId: ", zap.Error(appErr))
@@ -276,17 +269,17 @@ func (h *handlerImpl) checkGroupLeader(c context.Ctx) {
 	c.Next()
 }
 
-func (h *handlerImpl) checkRegTime() bool {
+func (h *handlerImpl) checkRegTime() (bool, string) {
 	nowUTC := time.Now().UTC()
 	gmtPlus7Location := time.FixedZone("GMT+7", 7*60*60)
 	nowGMTPlus7 := nowUTC.In(gmtPlus7Location)
 	if nowGMTPlus7.Before(h.regConf.RpkmStart) {
 		h.log.Named("checkRegTime").Warn("Forbidden: Registration hasn't started")
-		return false
+		return false, "Registration hasn't started"
 	} else if nowGMTPlus7.After(h.regConf.RpkmEnd) {
 		h.log.Named("checkRegTime").Warn("Forbidden: Registration has ended")
-		return false
+		return false, "Registration has ended"
 	}
 
-	return true
+	return true, ""
 }