Hi.
I updated your plugin to version 1.4.1 and after experiencing error with “invalid vendor”, I manually updated to your 1.4.2 pre-release from GitHub. WooCommerce version 3.0.5.
Now the credit card transactions are getting processed in the background, but customers are being displayed “internal server error” message, which would lead them to re-submit payment resulting in multiple charges. At no point does it actually successfully complete the payment process, taking customers to “success page”.
Are you aware of this issue?
Thank you.