Hi, Tobias_Conrad.
All of your shortcodes were set up incorrectly. Try this (there is also a shortcode builder in the post editor that will build correctly formatted shortcodes for you):
[timed-content-server show="03:00" hide="05:00"]Lunge 03:00 – 05:00[/timed-content-server]
[timed-content-server show="05:00" hide="07:00"]Dickdarm 5:00 – 07:00[/timed-content-server]
[timed-content-server show="07:00" hide="09:00"]Magen 07:00 – 09:00[/timed-content-server]
[timed-content-server show="09:00" hide="11:00"]Pankreas-Milz 09:00 – 11:00[/timed-content-server]
[timed-content-server show="11:00" hide="13:00"]Herz 11:00 – 13:00[/timed-content-server]
[timed-content-server show="13:00" hide="15:00"]Dünndarm 13:00 – 15:00[/timed-content-server]
[timed-content-server show="15:00" hide="17:00"]Blase 15:00 – 17:00[/timed-content-server]
[timed-content-server show="17:00" hide="19:00"]Niere 17:00 – 19:00[/timed-content-server]
[timed-content-server show="19:00" hide="21:00"]Kreislauf 19:00 – 21:00[/timed-content-server]
[timed-content-server show="21:00" hide="23:00"]Drei-Erwärmer 21:00 – 23:00[/timed-content-server]
[timed-content-server show="23:00" hide="23:59"]Gallenblase 23:00 – 01:00[/timed-content-server]
[timed-content-server show="00:00" hide="01:00"]Gallenblase 23:00 – 01:00[/timed-content-server]
[timed-content-server show="01:00" hide="03:00"]Leber 01:00 – 03:00[/timed-content-server]
[timed-content-server show="2011-01-01 00:00" hide="2011-12-31 23:59"]We’re in 2011[/timed-content-server]
