part fix #2854 - load default prefs

- after installation plugin prefs doesn't exist

e107_plugins/list_new/list_class.php

@@ -103,6 +103,13 @@ class listclass
 	{
 		return e107::pref('list_new'); //TODO Convert from old format to new. 
 		
+		//insert default preferences
+		if (empty(	$listPrefs))
+		{
+       		$listPrefs = $this->list_pref = $this->getDefaultPrefs();
+       		e107::getPlugConfig('list_new')->reset()->setPref($listPrefs)->save(true);
+    	}
+    	return $listPrefs;
 		/*
 		$sql = e107::getDb();
 		//check preferences from database
@@ -865,4 +872,4 @@ class listclass
 	}
 }
 
-?>
+?>