Language improvements (#66)

.version

@@ -1 +1 @@
-2.1.3
+2.1.4

CHANGELOG.MD

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.1.4]
+
+### Fixed
+
+- Language improvements
+
 ## [2.1.3]
 
 

Model/ApiFacade/OpenApi.php

@@ -134,6 +134,7 @@ private function handleDataStructure(array $data): array
             'amount' => $data['amount'],
             'description' => $data['description'],
             'hiddenDescription' => $data['crc'],
+            'lang' => strstr($data['language'], '_', true) ? strstr($data['language'], '_', true) : $data['language'],
             'payer' => [
                 'email' => $data['email'],
                 'name' => $data['name'],