diff --git a/i18n/en_US.yaml b/i18n/en_US.yaml
index b5fdcdc9..0271ce76 100644
--- a/i18n/en_US.yaml
+++ b/i18n/en_US.yaml
@@ -1,19 +1,4 @@
 # The following fields are used for back-end
-#  backend.email.tpl.change_email.title.other = Confirm your new email address for {{.SiteName}}  by clicking on the following link:\u003cbr\u003e\u003cbr\u003e\n\n\u003ca href='{{.ChangeEmailUrl}}' target='_blank'\u003e{{.ChangeEmailUrl}}\u003c/a\u003e\u003cbr\u003e\u003cbr\u003e\n\nIf you did not request this change, please ignore this email.\n
-#  backend.email.tpl.change_email.body.other = [{{.SiteName}}] Confirm your new email address
-#  backend.email.tpl.new_answer.title.other = \u003cstrong\u003e\u003ca href='{{.AnswerUrl}}'\u003e{{.QuestionTitle}}\u003c/a\u003e\u003c/strong\u003e\u003cbr\u003e\u003cbr\u003e\n\n\u003csmall\u003e{{.DisplayName}}:\u003c/small\u003e\u003cbr\u003e\n\u003cblockquote\u003e{{.AnswerSummary}}\u003c/blockquote\u003e\u003cbr\u003e\n\u003ca href='{{.AnswerUrl}}'\u003eView it on {{.SiteName}}\u003c/a\u003e\u003cbr\u003e\u003cbr\u003e\n\n\u003csmall\u003eYou are receiving this because you authored the thread. \u003ca href='{{.UnsubscribeUrl}}'\u003eUnsubscribe\u003c/a\u003e\u003c/small\u003e
-#  backend.email.tpl.new_answer.body.other = [{{.SiteName}}] {{.DisplayName}} answered your question
-#  backend.email.tpl.new_comment.title.other = \u003cstrong\u003e\u003ca href='{{.CommentUrl}}'\u003e{{.QuestionTitle}}\u003c/a\u003e\u003c/strong\u003e\u003cbr\u003e\u003cbr\u003e\n\n\u003csmall\u003e{{.DisplayName}}:\u003c/small\u003e\u003cbr\u003e\n\u003cblockquote\u003e{{.CommentSummary}}\u003c/blockquote\u003e\u003cbr\u003e\n\u003ca href='{{.CommentUrl}}'\u003eView it on {{.SiteName}}\u003c/a\u003e\u003cbr\u003e\u003cbr\u003e\n\n\u003csmall\u003eYou are receiving this because you authored the thread. \u003ca href='{{.UnsubscribeUrl}}'\u003eUnsubscribe\u003c/a\u003e\u003c/small\u003e
-#  backend.email.tpl.new_comment.body.other = [{{.SiteName}}] {{.DisplayName}} commented on your post
-#  backend.email.tpl.pass_reset.title.other = Somebody asked to reset your password on [{{.SiteName}}].\u003cbr\u003e\u003cbr\u003e\n\nIf it was not you, you can safely ignore this email.\u003cbr\u003e\u003cbr\u003e\n\nClick the following link to choose a new password:\u003cbr\u003e\n\u003ca href='{{.PassResetUrl}}' target='_blank'\u003e{{.PassResetUrl}}\u003c/a\u003e\n
-#  backend.email.tpl.pass_reset.body.other = [{{.SiteName }}] Password reset
-#  backend.email.tpl.register.title.other = Welcome to {{.SiteName}}\u003cbr\u003e\u003cbr\u003e\n\nClick the following link to confirm and activate your new account:\u003cbr\u003e\n\u003ca href='{{.RegisterUrl}}' target='_blank'\u003e{{.RegisterUrl}}\u003c/a\u003e\u003cbr\u003e\u003cbr\u003e\n\nIf the above link is not clickable, try copying and pasting it into the address bar of your web browser.\n
-#  backend.email.tpl.register.body.other = [{{.SiteName}}] Confirm your new account
-#  backend.email.tpl.test.title.other = This is a test email.
-#  backend.email.tpl.test.body.other = [{{.SiteName}}] Test Email
-
-
-
 backend:
   base:
     success:
@@ -123,6 +108,9 @@ backend:
   email_or_password_wrong_error:
     other: Email and password do not match.
   error:
+    password:
+      space_invalid:
+        other: Password cannot contain spaces.
     admin:
       cannot_update_their_password:
         other: You cannot modify your password.
diff --git a/i18n/zh_CN.yaml b/i18n/zh_CN.yaml
index 29ca8cbb..84036e10 100644
--- a/i18n/zh_CN.yaml
+++ b/i18n/zh_CN.yaml
@@ -97,13 +97,16 @@ backend:
       other: 编辑标签描述（无需审核）
     rank_tag_synonym_label:
       other: 管理标签同义词
-  email:
+  e_mail:
     other: 邮箱
   password:
     other: 密码
   email_or_password_wrong_error:
     other: 邮箱和密码不匹配。
   error:
+    password:
+      space_invalid:
+        other: 密码不能包含空格。
     admin:
       cannot_update_their_password:
         other: 您无法修改自己的密码。
diff --git a/internal/base/validator/validator.go b/internal/base/validator/validator.go
index 3ce824a4..9f46d229 100644
--- a/internal/base/validator/validator.go
+++ b/internal/base/validator/validator.go
@@ -207,10 +207,12 @@ func (m *MyValidator) Check(value interface{}) (errFields []*FormErrorField, err
 		if err == nil {
 			return nil, nil
 		}
+		errMsg := ""
 		for _, errField := range errFields {
 			errField.ErrorMsg = translator.Tr(m.Lang, errField.ErrorMsg)
+			errMsg = errField.ErrorMsg
 		}
-		return errFields, err
+		return errFields, myErrors.BadRequest(reason.RequestFormatError).WithMsg(errMsg)
 	}
 	return nil, nil
 }
diff --git a/internal/migrations/v10.go b/internal/migrations/v10.go
index 7ad0c990..2d669b19 100644
--- a/internal/migrations/v10.go
+++ b/internal/migrations/v10.go
@@ -24,6 +24,8 @@ func addLoginLimitations(x *xorm.Engine) error {
 		_ = json.Unmarshal([]byte(loginSiteInfo.Content), content)
 		content.AllowEmailRegistrations = true
 		content.AllowEmailDomains = make([]string, 0)
+		data, _ := json.Marshal(content)
+		loginSiteInfo.Content = string(data)
 		_, err = x.ID(loginSiteInfo.ID).Cols("content").Update(loginSiteInfo)
 		if err != nil {
 			return fmt.Errorf("update site info failed: %w", err)
diff --git a/internal/schema/user_schema.go b/internal/schema/user_schema.go
index f1f2bc2f..f0bdafff 100644
--- a/internal/schema/user_schema.go
+++ b/internal/schema/user_schema.go
@@ -262,35 +262,29 @@ type UserRegisterReq struct {
 }
 
 func (u *UserRegisterReq) Check() (errFields []*validator.FormErrorField, err error) {
-	// TODO i18n
-	err = checker.CheckPassword(8, 32, 0, u.Pass)
-	if err != nil {
-		errField := &validator.FormErrorField{
+	if err = checker.CheckPassword(u.Pass); err != nil {
+		errFields = append(errFields, &validator.FormErrorField{
 			ErrorField: "pass",
 			ErrorMsg:   err.Error(),
-		}
-		errFields = append(errFields, errField)
+		})
 		return errFields, err
 	}
 	return nil, nil
 }
 
 type UserModifyPasswordReq struct {
-	OldPass string `validate:"omitempty,gte=8,lte=32" json:"old_pass"`
-	Pass    string `validate:"required,gte=8,lte=32" json:"pass"`
+	OldPass     string `validate:"omitempty,gte=8,lte=32" json:"old_pass"`
+	Pass        string `validate:"required,gte=8,lte=32" json:"pass"`
 	UserID      string `json:"-"`
 	AccessToken string `json:"-"`
 }
 
 func (u *UserModifyPasswordReq) Check() (errFields []*validator.FormErrorField, err error) {
-	// TODO i18n
-	err = checker.CheckPassword(8, 32, 0, u.Pass)
-	if err != nil {
-		errField := &validator.FormErrorField{
+	if err = checker.CheckPassword(u.Pass); err != nil {
+		errFields = append(errFields, &validator.FormErrorField{
 			ErrorField: "pass",
 			ErrorMsg:   err.Error(),
-		}
-		errFields = append(errFields, errField)
+		})
 		return errFields, err
 	}
 	return nil, nil
@@ -352,14 +346,11 @@ type UserRePassWordRequest struct {
 }
 
 func (u *UserRePassWordRequest) Check() (errFields []*validator.FormErrorField, err error) {
-	// TODO i18n
-	err = checker.CheckPassword(8, 32, 0, u.Pass)
-	if err != nil {
-		errField := &validator.FormErrorField{
+	if err = checker.CheckPassword(u.Pass); err != nil {
+		errFields = append(errFields, &validator.FormErrorField{
 			ErrorField: "pass",
 			ErrorMsg:   err.Error(),
-		}
-		errFields = append(errFields, errField)
+		})
 		return errFields, err
 	}
 	return nil, nil
diff --git a/pkg/checker/password.go b/pkg/checker/password.go
index 966b851c..34321350 100644
--- a/pkg/checker/password.go
+++ b/pkg/checker/password.go
@@ -3,6 +3,7 @@ package checker
 import (
 	"fmt"
 	"regexp"
+	"strings"
 )
 
 const (
@@ -13,27 +14,26 @@ const (
 	LevelS
 )
 
-// CheckPassword
-// minLength: Specifies the minimum length of a password
-// maxLength：Specifies the maximum length of a password
-// minLevel：Specifies the minimum strength level required for passwords
-// pwd：Text passwords
-func CheckPassword(minLength, maxLength, minLevel int, pwd string) error {
-	// First check whether the password length is within the range
-	if len(pwd) < minLength {
-		return fmt.Errorf("BAD PASSWORD: The password is shorter than %d characters", minLength)
-	}
-	if len(pwd) > maxLength {
-		return fmt.Errorf("BAD PASSWORD: The password is logner than %d characters", maxLength)
+const (
+	PasswordCannotContainSpaces = "error.password.space_invalid"
+)
+
+// CheckPassword checks the password strength
+func CheckPassword(password string) error {
+	if strings.Contains(password, " ") {
+		return fmt.Errorf(PasswordCannotContainSpaces)
 	}
 
+	// TODO Currently there is no requirement for password strength
+	minLevel := 0
+
 	// The password strength level is initialized to D.
 	// The regular is used to verify the password strength.
 	// If the matching is successful, the password strength increases by 1
 	level := levelD
 	patternList := []string{`[0-9]+`, `[a-z]+`, `[A-Z]+`, `[~!@#$%^&*?_-]+`}
 	for _, pattern := range patternList {
-		match, _ := regexp.MatchString(pattern, pwd)
+		match, _ := regexp.MatchString(pattern, password)
 		if match {
 			level++
 		}