jos-Error: View nicht gefunden [Name, Typ, Präfix]: category, pdf, contentView

JSite -> dispatch() @ /www/htdocs/w00e91c3/index.php:42
JComponentHelper :: renderComponent() @ /www/htdocs/w00e91c3/includes/application.php:198
JComponentHelper :: executeComponent() @ /www/htdocs/w00e91c3/libraries/joomla/application/component/helper.php:357
require_once() @ /www/htdocs/w00e91c3/libraries/joomla/application/component/helper.php:388
JController -> execute() @ /www/htdocs/w00e91c3/components/com_content/content.php:18
ContentController -> display() @ /www/htdocs/w00e91c3/libraries/joomla/application/component/controller.php:754
JController -> display() @ /www/htdocs/w00e91c3/components/com_content/controller.php:77
JController -> getView() @ /www/htdocs/w00e91c3/libraries/joomla/application/component/controller.php:671
JError :: raiseError() @ /www/htdocs/w00e91c3/libraries/joomla/application/component/controller.php:896
JError :: raise() @ /www/htdocs/w00e91c3/libraries/joomla/error/error.php:251