$  pincode = $  this->getRequest()->getParam('p', false); $  id = $  this->getRequest()->getParam('id', false);  $  collection = $  this->resultPageFactory->create();             $  collection = $  this->getCollection();             $  collection->addFieldToFilter('pincode', array('eq' => $  pincode));             $  codData = $  collection->getData();              if($  codData[0]['pincode'] != '' && $  codData[0]['cod'] != ''){                 echo '<span class="cod-suc">Delivery Available';                 if($  codData[0]['days'] != ''){                     $  final = ' within '.$  codData[0]['days'].' days <br>'.$  codData[0]['cod'].' ';                 }                 echo '.</span>';             }else{                $  final =  '<span class="cod-error">Delivery Not Available</span>';             } 

it always gives this error

Fatal error: Uncaught Error: Call to undefined method Pradeep\PincodeChecker\Controller\Index\Index\Interceptor::getCollection()