Index: /lib/wpsg_fpdf.class.php
===================================================================
--- /lib/wpsg_fpdf.class.php	(revision 7385)
+++ /lib/wpsg_fpdf.class.php	(revision 7386)
@@ -8,5 +8,5 @@
 		 
 		var $noHeader = false;
-		var $extgstates;
+		var $extgstates = [];
 		 
 		public function Text($x, $y, $text)