This sounds good
You get all time you need

Can you please give me help with updating my version of this module?
Which link I have to use?
http://www.silverstripe.org/event-calendar/

Okay, I have not installed any SVN client yet. Currently I also do not prefer to do this because there is no need for me.
Is there any other possibility to download the module via this link?
http://bluehousegroup.svn.beanstalkapp.com/modules/trunk/
I could download every file on its own, but that is of course not the right way to do.

Hello UncleCheese,

now the original error is solved.
But I get a new one -.-
After adding a new calendar to my page, I click on the link in the navigation bar.
Then I see a horrible-looking page with red and black boxes.
The error code is.
FATAL ERROR: i18n::include_by_class: Class Calendar.ss.Calendar not found
At line 1259 in C:\xampp\htdocs\sapphire\core\i18n.php

user_error(i18n::include_by_class: Class Calendar.ss.Calendar not found,512)
line 1259 of i18n.php

i18n::include_by_class(Calendar.ss.Calendar)
line 132 of Core.php

_t(Calendar.ss.Calendar.BROWSECALENDAR,Browse the Calendar)
line 14 of .cacheC..xampp.htdocs.event_calendar.templates.Layout.Calendar.ss

include(C:\Users\Marco\AppData\Local\Temp\silverstripe-cacheC--xampp-htdocs\.cacheC..xampp.htdocs.event_calendar.templates.Layout.Calendar.ss)
line 197 of SSViewer.php

SSViewer->process(Calendar_Controller)
line 189 of SSViewer.php

SSViewer->process(Calendar_Controller)
line 296 of Controller.php

Controller->defaultAction(index,Array)
line 267 of Controller.php

Controller->run(Array)
line 22 of ModelAsController.php

ModelAsController->run(Array)
line 104 of Director.php

Director::direct(/belegungsplan/)
line 158 of main.php
Context
Debug (Debug::showError() in line 180 of Debug.php)

* class =

Calendar.ss.Calendar

* module =