No puedo subir videos a mi red social

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Hola, he instalado el script de Jcow para crear una red social (iberbonsai.com), y al intentar subir un video a través de un enlace de youtube y me sale el siguiente error:

Strict Standards: Non-static method videos::ajax_post() should not be called statically in/home/u378404238/public_html/includes/libs/ss.inc.php(223) : eval()'d code on line 1

Strict Standards: Non-static method story::check_page_access() should not be called statically in /home/u378404238/public_html/modules/videos/videos.php on line125

Strict Standards: Non-static method videos::ajax_error() should not be called statically in/home/u378404238/public_html/modules/videos/videos.php on line 132
wrong youtubeid

Strict Standards: Non-static method videos::ajax_form() should not be called statically in/home/u378404238/public_html/modules/videos/videos.php on line 191

No se cual es el motivo, espero que puedan ayudarme.

Un saludo.