changePackage - modify domain

app/Http/Actions/ChangePackage.php

@@ -66,7 +66,7 @@ class ChangePackage extends AddonController
         $api = new KerioWhmcs('whmcsKerioEmail', 'Thurdata', '1.0');
         try {
             $api->login($params['serverhostname'], $params['serverusername'], $params['serverpassword']);
-            $domainId = $api->getDomainId('rondomali.ch');
+            $domainID = $api->getDomainId('rondomali.ch');
         } catch (KerioApiException $error) {
             logModuleCall(
                 'kerioEmail',
@@ -77,7 +77,7 @@ class ChangePackage extends AddonController
             );
             return ['error' => $error->getMessage()];
         }             
-        if ($domainId === FALSE) {
+        if ($domainID === FALSE) {
             return "Error: Domain $domain not found";
         }