After Uprading www.aero-movies.de from 2.7 to 2.81 there are some problems.
The first message was Fatal error: Call to undefined function get_family_filter() in /var/www/vhosts/aero-movies.de/httpdocs/index.php on line 28

After changing the index.php with the old one the startingpage was shown.
At klicking on one of the videos this message came Fatal error: Call to undefined method Video::get_response_videos() in /var/www/vhosts/aero-movies.de/httpdocs/view_video.php on line 182

Any Ideas ?