I am having a lots of "Strict Standards" notice at the top of my wordpress dashboard for m

Here is the msg
Strict Standards: Declaration of MP_Gateway_PIN::order_confirmation_email() should be compatible with MP_Gateway_API::order_confirmation_email($msg, $order) in /home4/singgahs/public_html/wp-content/plugins/marketpress/marketpress-includes/plugins-gateway/pin.php on line 485

Strict Standards: Declaration of MP_Gateway_Simplify::order_confirmation_email() should be compatible with MP_Gateway_API::order_confirmation_email($msg, $order) in /home4/singgahs/public_html/wp-content/plugins/marketpress/marketpress-includes/plugins-gateway/simplify.php on line 379

Strict Standards: Redefining already defined constructor for class AppointmentsGcal in /home4/singgahs/public_html/wp-content/plugins/appointments/includes/class.gcal.php on line 23