Hello,
I am trying to add Coinbase as a payment method on my InvoicePlane 1.5.2 install, very excited to see that has finally been implemented by the way. 
Unfortunately when trying to pay a test invoice through Coinbase, I receive an error immediately after clicking the Pay Now button.
An uncaught Exception was encountered
Type: Omnipay\Common\Exception\InvalidRequestException
Message: The description parameter is required
Filename: /var/www/html/vendor/omnipay/common/src/Omnipay/Common/Message/AbstractRequest.php
Line Number: 201
Backtrace:
File: /var/www/html/vendor/omnipay/coinbase/src/Message/PurchaseRequest.php
Line: 14
Function: validate
File: /var/www/html/vendor/omnipay/common/src/Omnipay/Common/Message/AbstractRequest.php
Line: 610
Function: getData
File: /var/www/html/application/modules/guest/controllers/Payment_handler.php
Line: 90
Function: send
File: /var/www/html/index.php
Line: 327
Function: require_once
Seems like the documentation hasn’t caught up with the new features yet, so any guidance on what I may have done wrong is appreciated.
Thanks!