diff --git a/matrix_py_bridge/client.py b/matrix_py_bridge/client.py
index 9b68b04..c53c9e9 100644
--- a/matrix_py_bridge/client.py
+++ b/matrix_py_bridge/client.py
@@ -1,4 +1,4 @@
-from typing import Optional
+from typing import Callable, Union, Optional
 from logging import Logger
 from nio import (
     AsyncClient,
@@ -16,9 +16,9 @@ class MatrixClient:
         user_id: str,
         token: str,
         device_id: Optional[str] = "mcdr",
-        logger: Optional[Logger, callable] = print,
+        logger: Union[Logger, Callable, None] = print,
     ):
-        self.connected: bool = False
+        self.connected: bool = True
         self.client = AsyncClient(homeserver=homeserver)
         self.client.user_id = user_id
         self.client.access_token = token
@@ -47,25 +47,22 @@ class MatrixClient:
                 if hasattr(self.logger, "debug"):
                     self.logger.debug(f"MatrixClient response: {response}")
 
-            def on_sync_error(response: SyncError):
+            async def on_sync_error(response: SyncError):
                 self.network_status = False
-                message = (
-                    "Sync error with matrix homeserver: "
-                    f"{response.status_code}"
-                )
-                RED = "\033[31m"
-                RESET = "\033[0m"
+                _message = f"Sync error with matrix homeserver: {response.status_code}"
+                _ansi_color_red = "\033[31m"
+                _ansi_reset_color = "\033[0m"
                 if not self.logger:
-                    print(RED + message + RESET)
+                    print(_ansi_color_red + _message + _ansi_reset_color)
                 if hasattr(self.logger, "error"):
-                    self.logger.error(message)
+                    self.logger.error(_message)
                 else:
-                    self.logger(RED + message + RESET)
+                    self.logger(_ansi_color_red + _message + _ansi_reset_color)
 
             client.add_response_callback(on_sync_response, SyncResponse)
             client.add_response_callback(on_sync_error, SyncError)
 
             async def message_callback(
                 room: MatrixRoom, event: RoomMessageText
-            ) -> None:
-                raise NotImplementedError()
+            ) -> None:  # 处理接受到的消息回调
+                raise NotImplementedError()  # 咕咕咕……
diff --git a/matrix_py_bridge/config/file_handler.py b/matrix_py_bridge/config/file_handler.py
index 27407c3..e995683 100644
--- a/matrix_py_bridge/config/file_handler.py
+++ b/matrix_py_bridge/config/file_handler.py
@@ -23,7 +23,7 @@ if __name__ == "__main__":
     import os
 
     if not os.path.exists("config.json"):
-        exit
+        exit()
     config = load_file_json("config.json")
     print("Config data type: " + str(type(config)))
     print("Config data content: " + str(config))
diff --git a/pyproject.toml b/pyproject.toml
index 07fc05d..a0eb360 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,6 +5,7 @@ description = "A python plugin to sync messages between Minecraft server and mat
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
+    "chardet>=5.2.0",
     "matrix-nio>=0.25.2",
     "mcdreforged>=2.15.2",
 ]
diff --git a/requirements.txt b/requirements.txt
index b211fb9..7543294 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
+chardet
 matrix-nio
 mcdreforged