Index: /mods/wpsg_mod_paypalapi.class.php
===================================================================
--- /mods/wpsg_mod_paypalapi.class.php	(revision 7392)
+++ /mods/wpsg_mod_paypalapi.class.php	(revision 7395)
@@ -1195,8 +1195,8 @@
 			$post_data['payer'] = array(
 				'payment_method' => 'paypal'
-			);			
-				
-			if ($oInvoiceCountry !== null) {
-												
+			);
+			
+			if ($oInvoiceCountry !== null && wpsg_isSizedString($arBasket['checkout']['plz'])) {
+															
 				$post_data['payer']['payer_info'] = [
 					'email' => $arBasket['checkout']['email'],