diff --git a/3rdparty/getid3/module.audio.mp3.php b/3rdparty/getid3/module.audio.mp3.php
index cba36193..6dc0f45b 100755
--- a/3rdparty/getid3/module.audio.mp3.php
+++ b/3rdparty/getid3/module.audio.mp3.php
@@ -923,6 +923,7 @@ public function decodeMPEGaudioHeader($offset, &$info, $recursivesearch=true, $S
 				//		$info['warning'][] = 'Too much data in file: expecting '.$ExpectedNumberOfAudioBytes.' bytes of audio data, found '.($info['avdataend'] - $info['avdataoffset']).' ('.(($info['avdataend'] - $info['avdataoffset']) - $ExpectedNumberOfAudioBytes).' bytes too many)';
 				//	}
 				} else {
+                                        if (! is_array($info['warning'])) $info['warning'] = array();
 					$info['warning'][] = 'Too much data in file: expecting '.$ExpectedNumberOfAudioBytes.' bytes of audio data, found '.($info['avdataend'] - $info['avdataoffset']).' ('.(($info['avdataend'] - $info['avdataoffset']) - $ExpectedNumberOfAudioBytes).' bytes too many)';
 				}
 			}
diff --git a/controller/categorycontroller.php b/controller/categorycontroller.php
index d0b830c9..707991ad 100644
--- a/controller/categorycontroller.php
+++ b/controller/categorycontroller.php
@@ -61,7 +61,7 @@ public function getCategory(){
 		$playlists= $this->getCategoryforUser($category);
 	
 		if(is_array($playlists)){
-			$aPlayLists='';
+			$aPlayLists= array();
 			foreach($playlists as $playinfo){
 				$aPlayLists[]=['info' => $playinfo, 'songids' => $this->getSongIdsForCategory($category,$playinfo['id'])];
 			}
@@ -127,7 +127,7 @@ private function getCategoryforUser($category){
 			
 		$stmt =$this->db->prepareQuery($SQL);
 		$result = $stmt->execute(array($this->userId));
-		$aPlaylists='';
+		$aPlaylists=array();
 		while( $row = $result->fetchRow()) {
 			$bg = $this->genColorCodeFromText(trim($row['name']),40,8);
 			$row['backgroundColor']=$bg;
@@ -135,10 +135,10 @@ private function getCategoryforUser($category){
 			$aPlaylists[]=$row;
 		}
 		
-		if(is_array($aPlaylists)){
-			return $aPlaylists;
-		}else{
+		if(empty($aPlaylists)){
 			return false;
+		}else{
+			return  $aPlaylists;
 		}
 	}
 	
diff --git a/controller/musiccontroller.php b/controller/musiccontroller.php
index b9ed9084..701eecdd 100755
--- a/controller/musiccontroller.php
+++ b/controller/musiccontroller.php
@@ -253,7 +253,7 @@ public function loadSongs(){
 			
 		$stmt = $this->db->prepareQuery($SQL);
 		$result = $stmt->execute(array($this->userId));
-		$aSongs='';
+		$aSongs=array();
 		
 		while( $row = $result->fetchRow()) {
 			$file_not_found = false;
@@ -275,10 +275,10 @@ public function loadSongs(){
 				$this->deleteFromDB($row['id'],$row['album_id'],$row['artist_id'],$row['file_id']);
 			}	
 		}
-		if(is_array($aSongs)){
-			return $aSongs;
-		}else{
+		if(empty($aSongs)){
 			return false;
+		}else{
+			return $aSongs;
 		}
 	}