Hi, after reinstalling Joomla it worked fine. UNTILL I installed "plg_jckeditor3.4.6_stable.zip". When I now click on the menu button "Artio Bookin > Configuration", the configuration site is displayed as pure html. At the end of the page, the following error message is shown:
<b>Fatal error</b>: Cannot redeclare getyoothemecss() (previously declared in /homepages/path to my website/templates/yoo_seasons/css/JFCKeditor.css.php:3) in <b>/homepages/path to my website/templates/yoo_seasons/css/JFCKeditor.css.php</b> on line <b>67</b><br />
What is wrong with that?