diff --git a/TIDALDL-PY/tidal_dl/__init__.py b/TIDALDL-PY/tidal_dl/__init__.py
index 8907e0d..3beae31 100644
--- a/TIDALDL-PY/tidal_dl/__init__.py
+++ b/TIDALDL-PY/tidal_dl/__init__.py
@@ -70,6 +70,7 @@ def mainCommand():
 def main():
     SETTINGS.read(getProfilePath())
     TOKEN.read(getTokenPath())
+    TIDAL_API.apiKey = apiKey.getItem(SETTINGS.apiKeyIndex)
     
     if len(sys.argv) > 1:
         mainCommand()
diff --git a/TIDALDL-PY/tidal_dl/printf.py b/TIDALDL-PY/tidal_dl/printf.py
index d2eab00..d4e22a3 100644
--- a/TIDALDL-PY/tidal_dl/printf.py
+++ b/TIDALDL-PY/tidal_dl/printf.py
@@ -8,6 +8,8 @@
 @Contact :   yaronhuang@foxmail.com
 @Desc    :   
 '''
+from pickle import GLOBAL
+import threading
 import aigpy
 import logging
 import prettytable
@@ -36,8 +38,7 @@ __LOGO__ = f'''
                         {VERSION}
 '''
 
-
-
+print_mutex = threading.Lock()
 
 class Printf(object):
 
@@ -170,16 +171,25 @@ class Printf(object):
 
     @staticmethod
     def err(string):
+        global print_mutex
+        print_mutex.acquire()
         print(aigpy.cmd.red(LANG.select.PRINT_ERR + " ") + string)
         # logging.error(string)
-
+        print_mutex.release()
+        
     @staticmethod
     def info(string):
+        global print_mutex
+        print_mutex.acquire()
         print(aigpy.cmd.blue(LANG.select.PRINT_INFO + " ") + string)
+        print_mutex.release()
 
     @staticmethod
     def success(string):
+        global print_mutex
+        print_mutex.acquire()
         print(aigpy.cmd.green(LANG.select.PRINT_SUCCESS + " ") + string)
+        print_mutex.release()
 
     @staticmethod
     def album(data: Album):
diff --git a/TIDALDL-PY/updatelog.md b/TIDALDL-PY/updatelog.md
index 5094370..c04dd27 100644
--- a/TIDALDL-PY/updatelog.md
+++ b/TIDALDL-PY/updatelog.md
@@ -1,15 +1,17 @@
 TYPE tidal-dl
 USE  pip3 install tidal-dl --upgrade
 
+- [X] Fix #931 
+
 #### v2022-07-06
 
-1. [X] Mulithread download
+- [X] Mulithread download
 
 #### v2022-06-23
 
-1. [X] remove redundant configuration
-2. [X] add simple-gui
-3. [X] optimize code
+- [X] remove redundant configuration
+- [X] add simple-gui
+- [X] optimize code
 
 #### v2022-03-04