QuickBooks PHP API - Can't get through the oAuth process again - php

Question

First off: I'm using https://github.com/consolibyte/quickbooks-php
I accidentally disconnected the APP from the "Apps" page in an attempt to reconnect (get new auth creds), but it appears that was a mistake.
So now I'm trying to go through the authorization process again but I'm getting an error when I click the "Connect to QuickBooks" button on the "docs/example_app_ipp_v3/" page as described in the Quick-Start guide.
Is there something I'm missing here? I can still query through the API explorer, but I can't seem to get any data back when I use $InvoiceService->query in the code (just returns false).
//get invoice info
require_once '../includes/quickbooks-php/config.php';
// Set up the IPP instance
$IPP = new QuickBooks_IPP($dsn);
// Get our OAuth credentials from the database
$creds = $IntuitAnywhere->load($the_username, $the_tenant);
//error_reporting(0);
//ini_set('display_errors', 1);
// Tell the framework to load some data from the OAuth store
$IPP->authMode(
QuickBooks_IPP::AUTHMODE_OAUTH,
$the_username,
$creds);
// This is our current realm
$realm = $creds['qb_realm'];
// Load the OAuth information from the database
if ($Context = $IPP->context())
{
// Set the IPP version to v3
$IPP->version(QuickBooks_IPP_IDS::VERSION_3);
$CustomerService = new QuickBooks_IPP_Service_Customer();
$InvoiceService = new QuickBooks_IPP_Service_Invoice();
$ItemService = new QuickBooks_IPP_Service_Item();
$PaymentService = new QuickBooks_IPP_Service_Payment();
$invoice_query = $InvoiceService->query($Context, $realm, "SELECT *, Line.* FROM Invoice WHERE Id = '" .QuickBooks_IPP_IDS::usableIDType($main_invoice['qb_invoice_id']). "'");
$this_invoice = array();
var_dump($invoice_query);
if (count($invoice_query)){
foreach ($invoice_query as $Invoice){
//do stuff with invoice here
}
}
}
I'm getting bool(false) from the var_dump($invoice_query) even though it gets through the if($Context = $IPP->context())
Then when I visit the "docs/example_app_ipp_v3/" page with nothing but the config updated to my current auth credentials the "Connect to Quickbooks" button (html below) takes me to the 404 page.
<ipp:connecttointuit>Connect with QuickBooks</ipp:connecttointuit>

Answer 1

Are you POSITIVE that your App Token and other credentials are correct in the config.php file? If they are sandbox/dev tokens, please post the config file.
Are you POSITIVE that the URLs in your configuration file are correct? If they are sandbox/dev, please post them.
Is $sandbox set to TRUE or FALSE? Does that correspond to the tokens you're using?