return error entity when verify email is not enabled

src/locales/en.js

@@ -586,6 +586,7 @@ export default {
         'new password equals old password': 'New password equals old password',
         'email is not verified': 'Email is not verified',
         'email is verified': 'Email is verified',
+        'email validation not allowed': 'Email validation is not allowed',
         'unauthorized access': 'Unauthorized access',
         'current token is invalid': 'Current token is invalid',
         'current token is expired': 'Current token is expired',

src/locales/zh_Hans.js

@@ -586,6 +586,7 @@ export default {
         'new password equals old password': '新密码与旧密码相同',
         'email is not verified': '邮箱还未验证通过',
         'email is verified': '邮箱已经验证过',
+        'email validation not allowed': '不允许邮箱验证',
         'unauthorized access': '未授权的登录',
         'current token is invalid': '当前认证令牌无效',
         'current token is expired': '当前认证令牌已过期',