Call to a member function getMethodInstance() on a non-object in /app/code/core/Mage/Payment/Model/Observer.php on line 46

app/code/core/Mage/Payment/Model/Observer.php

$order->getPayment()

protected $_isGateway = false;
    protected $_canAuthorize = false;
    protected $_canCapture = true;
    protected $_canCapturePartial = false;
    protected $_canRefund = false;
    protected $_canVoid = false;
    protected $_canUseInternal = false;
    protected $_canUseCheckout = true;
    protected $_canUseForMultishipping = false;
    protected $_paymentMethod = 'standard';
    protected $_order;

protected $_code = 'eazypay';
        protected $_isGateway = false;
        protected $_canAuthorize = false;
        protected $_canCapture = true;
        protected $_canCapturePartial = false;
        protected $_canRefund = false;
        protected $_canVoid = false;
        protected $_canUseInternal = false;
        protected $_canUseCheckout = true;
        protected $_canUseForMultishipping = false;
        protected $_paymentMethod = 'standard';
        protected $_order;

        public function cleanString($string) {

            $string_step1 = strip_tags($string);
            $string_step2 = nl2br($string_step1);
            $string_step3 = str_replace("<br />", "<br>", $string_step2);
            $cleaned_string = str_replace(""", " inch", $string_step3);
            return $cleaned_string;
        }

        /**
         * Get checkout session namespace
         *
         * @return Mage_Checkout_Model_Session
         */
        public function getCheckout() {
            return Mage::getSingleton('checkout/session');
        }

        /**
         * Get current quote
         *
         * @return Mage_Sales_Model_Quote
         */
        public function getQuote() {
            return $this->getCheckout()->getQuote();
        }

        /**
         * Get order model
         *
         * @return Mage_Sales_Model_Order
         */
        public function getOrder() {

            if (!$this->_order) {
                $paymentInfo = $this->getInfoInstance();
                $this->_order = Mage::getModel('sales/order')
                        ->loadByIncrementId($paymentInfo->getOrder()->getRealOrderId());
            }
            return $this->_order;
        }

    public function getOrderPlaceRedirectUrl() {
        return Mage::getUrl('eazypay/payment/redirect', array('_secure' => true));
    }

        public function getShippingAddress($order){
            $shipping = $order->getShippingAddress();
            $addr_entity_id = $shipping->getCustomerAddressId();
            $shippingaddress = Mage::getModel('sales/order_address');
            return $shippingaddress->load($addr_entity_id);
        }

        public function getRedirectURL(){

            $success = 'onepage/success/';
            $coFields = array();
            $order =  $this->getOrder();
            $orderId = $order->getRealOrderId();
            $shippingAddress = $this->getShippingAddress($order);
            $phone = $shippingAddress->getTelephone();
            $grandTotal = $order->getGrandTotal();
            $paymode = 9;
            $redirectURL = Mage::getConfig()->getNode('default/payment/eazypay/api_url');

            $merchantid = Mage::getStoreConfig('payment/eazypay/merchantid',Mage::app()->getStore());
            $key = Mage::getStoreConfig('payment/eazypay/key',Mage::app()->getStore());
            $referenceNum = Mage::getStoreConfig('payment/eazypay/reference_num',Mage::app()->getStore());
            $submerchantid = Mage::getStoreConfig('payment/eazypay/submerchant_id',Mage::app()->getStore());
            $debug_mode = Mage::getStoreConfig('payment/eazypay/debug_mode');

            $coFields['merchantid'] = $merchantid;
            $mandatoryfields = "$referenceNum|$submerchantid|$grandTotal|test|$phone";
            $returnurl= 'http://localhost/buildnext/index.php/eazypay/payment/response/?';//Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_WEB).$success;
            $returnURL_params = "ReferenceNo=$orderId&submerchantid=$submerchantid&ransaction amount=$grandTotal&paymode=$paymode";
            $returnurl.= $returnURL_params;

            if($debug_mode){
                $debugModel = Mage::getModel('eazypay/eazypaydebug');
                $debugModel->setOrderId($orderId);
                $debugModel->setParams($mandatoryfields);
                $debugModel->setCreatedDatetime(date("Y-m-d H:i:s"));
                $debugModel->save();
            }

            $en_mandatoryfields = $this->aes128Encrypt($mandatoryfields,$key);
            $en_returnurl = $this->aes128Encrypt($returnurl,$key);
            $en_referencenum = $this->aes128Encrypt($referenceNum,$key);
            $en_submerchantid = $this->aes128Encrypt($submerchantid,$key);
            $en_transaction_amount = $this->aes128Encrypt(1,$key);
            $en_paymode = $this->aes128Encrypt($paymode,$key);
            Mage::getSingleton('core/session')->setEazyPayOrdId($orderId);

            $redirectURL="merchantid=$merchantid"
            ."&mandatory fields=$en_mandatoryfields"
            ."&optional fields="
            ."&returnurl=$en_returnurl"
            ."&Reference No=$en_referencenum"
            ."&submerchantid=$en_submerchantid&transaction amount=$en_transaction_amount"
            ."&paymode=$en_paymode";
            return $redirectURL;
        }

        function aes128Encrypt($str,$key){
            $block = mcrypt_get_block_size('rijndael_128', 'ecb');
            $pad = $block - (strlen($str) % $block);
            $str .= str_repeat(chr($pad), $pad);
            return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $str, MCRYPT_MODE_ECB));
        }
}
?>