diff --git a/core/classes/Vars.class.php b/core/classes/Vars.class.php
index 96ea2b72..a8197a34 100644
--- a/core/classes/Vars.class.php
+++ b/core/classes/Vars.class.php
@@ -58,6 +58,7 @@ public static function setParameters()
 	{
 		self::$post = new stdClass();
 		self::$get =  new stdClass();
+		self::$request = new stdClass();
 		
 		foreach($_POST as $key=>$value)
 		{
diff --git a/core/common/OFCharts.class.php b/core/common/OFCharts.class.php
index 692206c3..b49283db 100755
--- a/core/common/OFCharts.class.php
+++ b/core/common/OFCharts.class.php
@@ -204,7 +204,7 @@ public static function create_line_graph($title)
 		self::show_chart($title);
 	}
 	
-	protected function show_chart($title)
+	protected static function show_chart($title)
 	{
 		$title = new title($title);
 		
diff --git a/core/common/SchedulesData.class.php b/core/common/SchedulesData.class.php
index 4f5fc2e9..2e74016b 100644
--- a/core/common/SchedulesData.class.php
+++ b/core/common/SchedulesData.class.php
@@ -811,7 +811,7 @@ public static function getBidWithRoute($pilotid, $code, $flightnum)
 		return DB::get_row($sql);
 	}
 	
-	public function setBidOnSchedule($scheduleid, $bidid)
+	public static function setBidOnSchedule($scheduleid, $bidid)
 	{
 		$scheduleid = intval($scheduleid);
 		$bidid = intval($bidid);