Payment fails

Hello,

Right away: I couldn’t reproduce the error which have been told to my customer. They said they couldn’t pay using the paypal plus option, there was an error displayed. Unfortunately, I don’t have this error message..

But.. I have this error log:

2018/07/17 14:37:43 [error] 8441#8441: *315935 FastCGI sent in stderr:
“PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/PayPal/Common/PayPalModel.php
on line 179
PHP message: PHP Warning: sizeof(): Parameter must be an array or an
object that implements Countable in
/var/www/clients/web/wp-content/plugins/woo-paypalplus/lib/P

Info: current WP version, current WooCommerce version, current version on all plugins and theme…