From 817fbf738cca82fa814c2af7ec0ddeec07cf77b3 Mon Sep 17 00:00:00 2001
From: Christian Mollekopf <mollekopf@apheleia-it.ch>
Date: Wed, 10 Apr 2024 17:19:39 +0200
Subject: [PATCH] Static properties cannot be accessed via the object operator

https://www.php.net/manual/en/language.oop5.static.php

Fixes:
Undefined property: kolab_storage::$last_error in /usr/share/roundcubemail/plugins/calendar/drivers/kolab/kolab_driver.php on line 397
---
 plugins/calendar/drivers/kolab/kolab_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/calendar/drivers/kolab/kolab_driver.php b/plugins/calendar/drivers/kolab/kolab_driver.php
index e3a72d4e..331e1ef5 100644
--- a/plugins/calendar/drivers/kolab/kolab_driver.php
+++ b/plugins/calendar/drivers/kolab/kolab_driver.php
@@ -394,7 +394,7 @@ class kolab_driver extends calendar_driver
         $folder = $this->storage->folder_update($prop);
 
         if ($folder === false) {
-            $this->last_error = $this->cal->gettext($this->storage->last_error);
+            $this->last_error = $this->cal->gettext($this->storage::$last_error);
             return false;
         }