diff --git a/functions/cache.php b/functions/cache.php
index f24710c..3796de5 100644
--- a/functions/cache.php
+++ b/functions/cache.php
@@ -72,7 +72,7 @@ function get_url(){
 				break;
 			default:
 				$protocol = "http://";
-				$port = ":".$port;
+				$port = "";
 				break;
 		}
 		
diff --git a/functions/readme.php b/functions/readme.php
index beb8f0d..f5b0354 100644
--- a/functions/readme.php
+++ b/functions/readme.php
@@ -1,7 +1,7 @@
 <?php
 //载入文件
 	if ( $config['thedir'] == '' ){
-		include_once(__DIR__."./Parsedown.php");
+		include_once(__DIR__."/Parsedown.php");
 	}
 	else{
 		include_once($config['thedir']."/zdir/functions/Parsedown.php");
diff --git a/functions/version.txt b/functions/version.txt
index f86d4bc..ec782e9 100644
--- a/functions/version.txt
+++ b/functions/version.txt
@@ -1 +1 @@
-1.50-2020530
\ No newline at end of file
+1.51-2020531
\ No newline at end of file
diff --git a/functions/viewmd.php b/functions/viewmd.php
index d4e418e..4f835f4 100644
--- a/functions/viewmd.php
+++ b/functions/viewmd.php
@@ -1,7 +1,7 @@
 <?php
 	//载入文件
 	if ( $config['thedir'] == '' ){
-		include_once(__DIR__."./Parsedown.php");
+		include_once(__DIR__."/Parsedown.php");
 	}
 	else{
 		include_once($config['thedir']."/zdir/functions/Parsedown.php");
diff --git a/index.php b/index.php
index fee03e7..edf49fc 100644
--- a/index.php
+++ b/index.php
@@ -48,11 +48,11 @@
 else if($c == 'admin') {
 	//如果当前目录存在
 	if( file_exists('./functions/admin.php') ) {
-		header("Location: ./zdir/functions/admin.php");
+		header("Location: ./functions/admin.php");
 		exit;
 	}
 	else{
-		header("Location: ./functions/admin.php");
+		header("Location: ./zdir/functions/admin.php");
 		exit;
 	}
 }