diff --git a/e107_admin/admin.php b/e107_admin/admin.php
index c7e447362..188ae3661 100644
--- a/e107_admin/admin.php
+++ b/e107_admin/admin.php
@@ -206,7 +206,7 @@ class admin_start
 
 	}	
 
-	function checkPaths()
+	private function checkPaths()
 	{
 		$create_dir = array(e_MEDIA,e_SYSTEM,e_CACHE,e_CACHE_CONTENT,e_CACHE_IMAGE, e_CACHE_DB, e_LOG, e_BACKUP, e_CACHE_URL, e_TEMP, e_IMPORT);
 
@@ -231,7 +231,7 @@ class admin_start
 
 
 
-	function checkTimezone()
+	private function checkTimezone()
 	{
 		$mes = e107::getMessage();
 		$timezone = e107::pref('core','timezone');
@@ -415,7 +415,7 @@ class admin_start
 
 
 
-	function checkWritable()
+	private function checkWritable()
 	{
 		$mes = e107::getMessage();
 		
@@ -442,7 +442,7 @@ class admin_start
 
 	
 	
-	function checkHtmlarea()
+	private function checkHtmlarea()
 	{
 		$mes = e107::getMessage();
 		if (is_dir(e_ADMIN.'htmlarea') || is_dir(e_HANDLER.'htmlarea'))
@@ -453,7 +453,7 @@ class admin_start
 	
 
 
-	function checkIncompatiblePlugins()
+	private function checkIncompatiblePlugins()
 	{
 		$mes = e107::getMessage();
 		
@@ -479,7 +479,7 @@ class admin_start
 	}
 
 
-	function checkPasswordEncryption()
+	private function checkPasswordEncryption()
 	{
 		$us = e107::getUserSession();
 		$mes = e107::getMessage();
@@ -561,7 +561,7 @@ class admin_start
 	}
 
 
-	function checkHtaccess() // upgrade scenario
+	private function checkHtaccess() // upgrade scenario
 	{
 		if(!file_exists(e_BASE.".htaccess") && file_exists(e_BASE."e107.htaccess"))
 		{
@@ -575,7 +575,7 @@ class admin_start
 
 
 	
-	function checkFileTypes()
+	private function checkFileTypes()
 	{
 		$mes = e107::getMessage();
 		
@@ -590,7 +590,7 @@ class admin_start
 	
 
 
-	function checkSuspiciousFiles()
+	private function checkSuspiciousFiles()
 	{
 		$mes = e107::getMessage();
 		$public = array(e_UPLOAD, e_AVATAR_UPLOAD);
diff --git a/e107_admin/theme.php b/e107_admin/theme.php
index ab238b1c4..627824e9d 100644
--- a/e107_admin/theme.php
+++ b/e107_admin/theme.php
@@ -182,7 +182,8 @@ if($mode == 'download' && !empty($_GET['src']))
 			// Auto install?
 		//	$text = e107::getPlugin()->install($data['plugin_folder']); 
 		//	$mes->addInfo($text); 
-			echo $mes->render('default', 'success'); 
+			echo $mes->render('default', 'success');
+			e107::getTheme()->clearCache();
 		}
 		else
 		{
diff --git a/e107_handlers/db_verify_class.php b/e107_handlers/db_verify_class.php
index 3d96af966..6430b66bc 100644
--- a/e107_handlers/db_verify_class.php
+++ b/e107_handlers/db_verify_class.php
@@ -542,7 +542,7 @@ class db_verify
 	function renderTableName($tabs)
 	{
 		
-		if(substr($tabs,0,4)=="lan_")
+		if(strpos($tabs,"lan_") === 0)
 		{
 			list($tmp,$lang,$table) = explode("_",$tabs,3);
 			return $table. " (".ucfirst($lang).")";
@@ -776,7 +776,7 @@ class db_verify
 			
 		foreach($match[1] as $c=>$k)
 		{
-			if(strpos($k,'e107_' === 0)) // remove prefix if found in sql dump.
+			if(strpos($k,'e107_') === 0) // remove prefix if found in sql dump.
 			{
 				$k = substr($k, 5);	
 			}
diff --git a/e107_handlers/theme_handler.php b/e107_handlers/theme_handler.php
index b251fd9c2..65a162eea 100644
--- a/e107_handlers/theme_handler.php
+++ b/e107_handlers/theme_handler.php
@@ -41,7 +41,8 @@ class e_theme
 	);
 
 
-	private static $cacheTime = 120; // 2 hours
+	const CACHETIME = 120; // 2 hours
+	const CACHETAG  = "Meta_theme";
 
 
 	function __construct()
@@ -50,6 +51,14 @@ class e_theme
 
 
 
+	}
+
+
+	public function clearCache()
+	{
+
+		e107::getCache()->clear(self::CACHETAG, true);
+
 	}
 
 
@@ -67,9 +76,8 @@ class e_theme
 
 		$array = scandir(e_THEME);
 
-		$cacheTag = "Theme_meta";
 
-		if($force === false && $tmp = e107::getCache()->retrieve($cacheTag, self::$cacheTime, true, true))
+		if($force === false && $tmp = e107::getCache()->retrieve(self::CACHETAG, self::CACHETIME, true, true))
 		{
 			return e107::unserialize($tmp);
 		}
@@ -100,7 +108,7 @@ class e_theme
 
 		$cacheSet = e107::serialize($themeArray,'json');
 
-		e107::getCache()->set($cacheTag,$cacheSet,true,true,true);
+		e107::getCache()->set(self::CACHETAG,$cacheSet,true,true,true);
 
 		return $themeArray;
 	}