diff --git a/src/main/java/run/halo/app/controller/admin/api/RecoveryController.java b/src/main/java/run/halo/app/controller/admin/api/RecoveryController.java
index a9bd90e16..ebb831477 100644
--- a/src/main/java/run/halo/app/controller/admin/api/RecoveryController.java
+++ b/src/main/java/run/halo/app/controller/admin/api/RecoveryController.java
@@ -40,7 +40,7 @@ public class RecoveryController {
             @ApiParam("This file content type should be json")
             @RequestPart("file") MultipartFile file) {
         if (optionService.getByPropertyOrDefault(PrimaryProperties.IS_INSTALLED, Boolean.class, false)) {
-            throw new BadRequestException("不能在博客初始化完成之后迁移数据");
+            throw new BadRequestException("无法在博客初始化完成之后迁移数据");
         }
 
         recoveryService.migrateFromV0_4_3(file);
diff --git a/src/main/java/run/halo/app/model/dto/base/OutputConverter.java b/src/main/java/run/halo/app/model/dto/base/OutputConverter.java
index 8f2d31d81..72038fb79 100644
--- a/src/main/java/run/halo/app/model/dto/base/OutputConverter.java
+++ b/src/main/java/run/halo/app/model/dto/base/OutputConverter.java
@@ -10,7 +10,7 @@ import static run.halo.app.utils.BeanUtils.updateProperties;
  * <b>The implementation type must be equal to DTO type</b>
  *
  * @param <DTO>    the implementation class type
- * @param <DOMAIN> doamin type
+ * @param <DOMAIN> domain type
  * @author johnniang
  */
 public interface OutputConverter<DTO extends OutputConverter<DTO, DOMAIN>, DOMAIN> {
diff --git a/src/main/java/run/halo/app/service/impl/AdminServiceImpl.java b/src/main/java/run/halo/app/service/impl/AdminServiceImpl.java
index 6f6a9a481..c21ea412c 100644
--- a/src/main/java/run/halo/app/service/impl/AdminServiceImpl.java
+++ b/src/main/java/run/halo/app/service/impl/AdminServiceImpl.java
@@ -135,7 +135,7 @@ public class AdminServiceImpl implements AdminService {
                     userService.getByEmailOfNonNull(username) : userService.getByUsernameOfNonNull(username);
         } catch (NotFoundException e) {
             log.error("Failed to find user by name: " + username, e);
-            eventPublisher.publishEvent(new LogEvent(this, "", LogType.LOGIN_FAILED, loginParam.getUsername()));
+            eventPublisher.publishEvent(new LogEvent(this, loginParam.getUsername(), LogType.LOGIN_FAILED, loginParam.getUsername()));
 
             throw new BadRequestException(mismatchTip);
         }
@@ -144,7 +144,7 @@ public class AdminServiceImpl implements AdminService {
 
         if (!userService.passwordMatch(user, loginParam.getPassword())) {
             // If the password is mismatch
-            eventPublisher.publishEvent(new LogEvent(this, "", LogType.LOGIN_FAILED, loginParam.getUsername()));
+            eventPublisher.publishEvent(new LogEvent(this, loginParam.getUsername(), LogType.LOGIN_FAILED, loginParam.getUsername()));
 
             throw new BadRequestException(mismatchTip);
         }
diff --git a/src/main/java/run/halo/app/service/impl/RecoveryServiceImpl.java b/src/main/java/run/halo/app/service/impl/RecoveryServiceImpl.java
index bc748ad76..7199f55b0 100644
--- a/src/main/java/run/halo/app/service/impl/RecoveryServiceImpl.java
+++ b/src/main/java/run/halo/app/service/impl/RecoveryServiceImpl.java
@@ -218,6 +218,10 @@ public class RecoveryServiceImpl implements RecoveryService {
         // Handle comments
         List<BaseComment> baseComments = handleComment(commentsObject, createdPost.getId());
 
+        // TODO Handle categories
+
+        // TODO Handle tags
+
         List<PostComment> postComments = baseComments.stream()
                 .map(baseComment -> BeanUtils.transformFrom(baseComment, PostComment.class))
                 .collect(Collectors.toList());