--- a/includes/class.TemplatePower.inc.php
+++ b/includes/class.TemplatePower.inc.php
@@ -605,36 +605,38 @@
      */
     public function newBlock($blockname)
     {
-        $parent = &$this->content[ $this->parent[$blockname] .'_'. $this->index[$this->parent[$blockname]] ];
-
-		$lastitem = sizeof( $parent );
-        $lastitem > 1 ? $lastitem-- : $lastitem = 0;
-
-		$ind_blockname = $blockname . '_' . $this->index[ $blockname ];
-
-        if (! isset($parent[ $lastitem ]["_B:$blockname"])) {
-            //ok, there is no block found in the parentblock with the name of {$blockname}
-
-            //so, increase the index counter and create a new {$blockname} block
-            $this->index[ $blockname ] += 1;
+        if(isset($this->parent[$blockname])) {
+            $parent = &$this->content[ $this->parent[$blockname] .'_'. $this->index[$this->parent[$blockname]] ];
+
+            $lastitem = sizeof( $parent );
+            $lastitem > 1 ? $lastitem-- : $lastitem = 0;
 
             $ind_blockname = $blockname . '_' . $this->index[ $blockname ];
 
-            if (! isset($this->content[ $ind_blockname ])) {
-                 $this->content[ $ind_blockname ] = array();
+            if (! isset($parent[ $lastitem ]["_B:$blockname"])) {
+                //ok, there is no block found in the parentblock with the name of {$blockname}
+
+                //so, increase the index counter and create a new {$blockname} block
+                $this->index[ $blockname ] += 1;
+
+                $ind_blockname = $blockname . '_' . $this->index[ $blockname ];
+
+                if (! isset($this->content[ $ind_blockname ])) {
+                    $this->content[ $ind_blockname ] = array();
+                }
+
+                //tell the parent where his (possible) children are located
+                $parent[ $lastitem ]["_B:$blockname"] = $ind_blockname;
             }
 
-            //tell the parent where his (possible) children are located
-            $parent[ $lastitem ]["_B:$blockname"] = $ind_blockname;
-        }
-
-        //now, make a copy of the block defenition
-        $blocksize = sizeof( $this->content[ $ind_blockname ] );
-
-        $this->content[ $ind_blockname ][ $blocksize ] = array( $blockname );
-
-        //link the current block to the block we just created
-        $this->currentBlock = &$this->content[ $ind_blockname ][ $blocksize ];
+            //now, make a copy of the block defenition
+            $blocksize = sizeof( $this->content[ $ind_blockname ] );
+
+            $this->content[ $ind_blockname ][ $blocksize ] = array( $blockname );
+
+            //link the current block to the block we just created
+            $this->currentBlock = &$this->content[ $ind_blockname ][ $blocksize ];
+        }
     }
 
     /**