diff --git a/blueprints/log.py b/blueprints/log.py
index 31dd5c0..26a451c 100644
--- a/blueprints/log.py
+++ b/blueprints/log.py
@@ -26,6 +26,7 @@ def listlog():
 
     return jsonify(res), 200
 
+
 # 指定顯示特定一條log
 @log.route("/<int:id>", methods = ["GET"])
 def getlog(id:int):
diff --git a/utils/dbhelper.py b/utils/dbhelper.py
index e88854c..1ed725b 100644
--- a/utils/dbhelper.py
+++ b/utils/dbhelper.py
@@ -184,8 +184,9 @@ def solo_article_fetcher(role:str, key) -> Tuple[Dict, int]: # admin, owner, gen
             "content": res[1],
             "files_hash": res[2],
             "igid": res[3],
-            "comments_hash": [ c.sha1 for c in res[4] ]
         }
+        if res[4]:
+            one["comments_hash"] = [ c.sha1 for c in res[4] ]
         
         if role == "admin": 
             one["ip"] = res[6]
@@ -194,6 +195,7 @@ def solo_article_fetcher(role:str, key) -> Tuple[Dict, int]: # admin, owner, gen
         
     return one, 200
 
+
 # role (general) (owner) (admin)
 # 獲取單一留言
 def solo_comment_fetcher(role:str, key) -> Tuple[Dict, int]: # admin, owner, general
@@ -362,14 +364,14 @@ def solo_comment_remover(role:str, hash:str=None, sha1:str=None) -> Tuple[Dict,
 
 # 獲取檔案
 def solo_file_fetcher(role:str, fnhash:str) -> Tuple[Response, int]: # general, admin
-    article = pgclass.SQLarticle
-    article_mark = pgclass.SQLmark
-
     with db.getsession() as session:
-        arta = session.query(article).join(article_mark, article_mark.hash == article.hash).filter(article.file_list == func.any(fnhash))
+        arta="SELECT posts.id, posts.hash, mark.mark, f FROM posts " \
+            +"JOIN unnest(file_list) AS f ON 1=1 " \
+            +"JOIN mark ON posts.hash = mark.hash " \
+            +"WHERE f = :fnhash "
         if role == "general":
-            arta = arta.filter(article_mark == 'visible')
-        aeta = arta.first()
+            arta += "AND mark.mark = 'visible'"
+        arta = session.execute(text(arta), {'fnhash':fnhash}).first()
         if arta is None: # 檢查文章本體是否存在/可以閱覽
             return error("File not found"), 404
     
diff --git a/utils/s3helper.py b/utils/s3helper.py
index 83f1cb3..be2703c 100644
--- a/utils/s3helper.py
+++ b/utils/s3helper.py
@@ -7,6 +7,7 @@ import io
 import sys
 
 import minio
+from minio.deleteobjects import DeleteObject
 
 S3_BUCKET = os.getenv("S3_BUCKET")
 
@@ -17,7 +18,7 @@ s3 = minio.Minio(endpoint=os.getenv("S3_ENDPOINT"),
 
 # check exist
 if not s3.bucket_exists(S3_BUCKET):
-    print("[!] Where is S3 bucket \"%s\"?"%S3_BUCKET)
+    print("Where is S3 bucket \"%s\"?"%S3_BUCKET)
     sys.exit(0)
 
 # methods
@@ -60,8 +61,7 @@ def solo_file_fetcher(fnhash:str) -> Tuple[dict | None, int]:
 
 def multi_file_remover(file_list) -> int:
     try:
-        for f in file_list:
-            s3.remove_object(S3_BUCKET, f)
+        s3.remove_objects(S3_BUCKET, [ DeleteObject(f) for f in file_list ])
         return 0
     except:
         return 1
\ No newline at end of file