diff --git a/app/DataBase/hard_link.py b/app/DataBase/hard_link.py
index 37a656d..cb3a756 100644
--- a/app/DataBase/hard_link.py
+++ b/app/DataBase/hard_link.py
@@ -14,13 +14,15 @@ root_path = 'FileStorage/MsgAttach/'
 
 @log
 def get_md5_from_xml(content):
-    # 解析XML
-    root = ET.fromstring(content)
-    # 提取md5的值
-    md5_value = root.find(".//img").get("md5")
-    # print(md5_value)
-    return md5_value
-
+    try:
+        # 解析XML
+        root = ET.fromstring(content)
+        # 提取md5的值
+        md5_value = root.find(".//img").get("md5")
+        # print(md5_value)
+        return md5_value
+    except ET.ParseError:
+        return None
 
 def singleton(cls):
     _instance = {}
diff --git a/app/ui_pc/tool/pc_decrypt/pc_decrypt.py b/app/ui_pc/tool/pc_decrypt/pc_decrypt.py
index 80e3ca1..d741a00 100644
--- a/app/ui_pc/tool/pc_decrypt/pc_decrypt.py
+++ b/app/ui_pc/tool/pc_decrypt/pc_decrypt.py
@@ -171,7 +171,7 @@ class DecryptControl(QWidget, decryptUi.Ui_Dialog):
             # 目标数据库文件
         target_database = "app/DataBase/Msg/MSG.db"
         # 源数据库文件列表
-        source_databases = [f"app/DataBase/Msg/MSG{i}.db" for i in range(20)]
+        source_databases = [f"app/DataBase/Msg/MSG{i}.db" for i in range(1,20)]
         import shutil
         shutil.copy("app/DataBase/Msg/MSG0.db", target_database)  # 使用一个数据库文件作为模板
         # 合并数据库