pdo insert not working and going st8 to ajax error.

Insert into pdo table not working and no error.

$stmt = new Database();
					//check to make sure there is a record to update 
				$query = "SELECT chk_name FROM a_test WHERE charityID = :clientID AND contactID = :contactId";
				$stmt->query( $query );
				$stmt->bind( ':clientID', $clientId);
				$stmt->bind( ':contactId', $contactId );
		     	$stmt->execute();
				$result = $stmt->all();

		if($result == null){
			foreach($_POST['chkStateCollection'] as $chkState) {
				$stmt = new Database();
					//Inserting check state.
				$query = "INSERT INTO a_test (charityID, contactID, chk_name) VALUES (:clientId, :contactId :chkName) ";
				$stmt->query( $query );
				$stmt->bind( ':clientId', $clientId );
				$stmt->bind( ':contactId', $contactId );
				$stmt->bind( ':chkName', $chkState );
		     	$stmt->execute();
				$result = $stmt->all();
			}
		} else {
				$testreply = "no rows detected";
		}

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Ok so what this code is doing and suppose to do.  I am checking to see if a record exists first and this part works as expected if record exist goto else if not then create a record.

Now the record is created with two ID which is stored in a session they seem fine. now im not sure if the last one is the issue as i tried hard coding and same response but the field chk_name is populated by the forach which gets it details from ajax post array which looks like this -

(2) ["POSTITION", "FIRST_NAME"]

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the problem is when it gets to the INSERT it doenst add and the ajax response is not successful with not errors. so im lost on what is the issue.