Hello,
Using WooCommerce 2.6.14 and utilizing PayPal standard checkout, and PayPal Pro for credit cards I am getting the following issue (causing checkout to break) when updating to 1.4.5.
[07-Jun-2017 20:12:56 UTC] PHP Warning: Missing argument 2 for Angelleye_PayPal_Express_Checkout_Helper::angelleye_paypal_express_checkout_redirect_to_paypal() in /home/***/public_html/wp-content/plugins/paypal-for-woocommerce/angelleye-includes/express-checkout/class-wc-gateway-paypal-express-helper-angelleye.php on line 157
[07-Jun-2017 20:12:56 UTC] PHP Fatal error: Call to a member function get_error_messages() on null in /home/***/public_html/wp-content/plugins/paypal-for-woocommerce/angelleye-includes/express-checkout/class-wc-gateway-paypal-express-helper-angelleye.php on line 158
Thanks
-Reece