diff --git a/src/modules/launcher/PowerLauncher/ReportWindow.xaml.cs b/src/modules/launcher/PowerLauncher/ReportWindow.xaml.cs
index 733bcc9d60..ca59b37410 100644
--- a/src/modules/launcher/PowerLauncher/ReportWindow.xaml.cs
+++ b/src/modules/launcher/PowerLauncher/ReportWindow.xaml.cs
@@ -42,9 +42,9 @@ namespace PowerLauncher
         {
             string path = Log.CurrentLogDirectory;
             var directory = new DirectoryInfo(path);
-            var log = directory.GetFiles().OrderByDescending(f => f.LastWriteTime).First();
+            var log = directory.GetFiles().OrderByDescending(f => f.LastWriteTime).FirstOrDefault();
 
-            LogFilePathBox.Text = log.FullName;
+            LogFilePathBox.Text = log?.FullName;
 
             StringBuilder content = new StringBuilder();
             content.AppendLine(ErrorReporting.RuntimeInfo());
diff --git a/src/modules/launcher/Wox.Plugin/Logger/Log.cs b/src/modules/launcher/Wox.Plugin/Logger/Log.cs
index 76fedeac68..69dd96a558 100644
--- a/src/modules/launcher/Wox.Plugin/Logger/Log.cs
+++ b/src/modules/launcher/Wox.Plugin/Logger/Log.cs
@@ -41,8 +41,8 @@ namespace Wox.Plugin.Logger
             var rule = new LoggingRule("*", LogLevel.Info, target);
 #endif
             configuration.LoggingRules.Add(rule);
-            LogManager.Configuration = configuration;
             target.Dispose();
+            LogManager.Configuration = configuration;
         }
 
         private static void LogInternalException(string message, System.Exception e, Type fullClassName, [CallerMemberName] string methodName = "", [CallerFilePath] string sourceFilePath = "", [CallerLineNumber] int sourceLineNumber = 0)