Does not support Multisite

The plugin still works fine for me as of today.
But it doesn’t support WordPress Multiste installations.

Fix: in coinbase-commerce.php, function cb_init_gateway() replace the Woocommerce plugin check:

if ( in_array( ‘woocommerce/woocommerce.php’, apply_filters( ‘active_plugins’, get_option( ‘active_plugins’ ) ) ) ) {

with a version that supports Multisite:

if ( is_multisite() ) {
$isWooActive = (array_key_exists(‘woocommerce/woocommerce.php’, apply_filters(‘active_plugins’, get_site_option(‘active_sitewide_plugins’))));
} else {
$isWooActive = in_array( ‘woocommerce/woocommerce.php’, apply_filters( ‘active_plugins’, get_option( ‘active_plugins’ ) ) );
}
if ( $isWooActive ) {

Or, if you are in a hurry, remove the if() condition.