PayPal Payment Advanced for Opencart 2.1.0.2 Help

I purchase PayPal Payments Advanced module through the Opencart.com Marketplace. Having issues instaling and need some help.

I copied individual files to website and my current directory structure matches below.
Admin-> controller-> Payment-> egr_paypal_advanced.php
Admin-> Language-> English-> Payment-> egr_paypal_advanced.php
Admin-> Model-> Payment-> egr_paypal_advanced.php
Admin-> View-> Image-> Payment-> egr_paypal_advanced.png
Admin-> View-> Template-> Payment-> egr_paypal_advanced.tpl
Catalog-> controller-> Payment-> egr_paypal_advanced.php
Catalog-> Language-> English-> Payment-> egr_paypal_advanced.php
Catalog-> Model-> Payment-> egr_paypal_advanced.php
Catalog-> View-> Theme-> Default-> Template->Payment-> egr_paypal_advanced.tpl

PayPal Advanced shows up in the Extension section of Opencart, but when I select Admin -> Extensions -> Paypal Advanced->Install, I get below error message.

Fatal error: Class 'Controllerpaymentegrpaypaladvanced' not found in /home/atxwx/public_html/dansjigs.com/vqmod/vqcache/vq2-system_engine_loader.php on line 28

Any help would be apprecicated. I am using Opencart 2.1.0.2.

Dan

Hi,

try to ask author of the extension... if no help please write to me PM I'll try to help...

Got in contact with Author and looks to me the extension has been updated (but not on Opencart download site). Installed new files and was able to install through Extenstions with no error this time. Contacted PayPal for Required API information. When I tested, comes back saying PayPal Express needs to be setup. Working on understanding and setting that up now.

Danny

So it apprears this module needs to have PayPal Express setup as well to work. Got needed info from PayPal to setup PayPal Express. With that done, I now get a credit card screen within my checkout page for about a second and then store web page is replaced with a PayPal Payflow webpage with following message...

Error: Invalid Merchant or Merchant doesn't exist!

Contacting merchant again to see if they have any ideas on this.

Danny

OK...Got it working!

Here is what I did.

1.) Changed return URL in manager.paypal.com by removing "extension" because instructions are wrong on Opencart site.

Still had Error: Invalid Merchant or Merchant doesn't exist!

2.) Setup manager.paypal.com to match this link..

https://www.diigo.com/item/image/4xf5e/oh70?size=o

Still had Error: Invalid Merchant or Merchant doesn't exist!

3.) In manager.paypal.com..

- clicked on “Service Settings” at the top of the page.
- clicked on the link labeled “Customize”
- Selected “Layout C” then clicked on “Save and Publish”.

Now able to process transactions. Have ran two test transactions.

Danny