Problem in embedding videos in Kaltura CE

Whenever I try to embed videos from Kaltura, myspace etc. I can play them while searching but when I embed them in post then there is nothing in the video (time is 0:00). Also they behave differently for every website like for myspace it stucks at entering of Title. I don't know how to explain it more clearly. But I am sending you screen shots, batch log.

I am seeing following error in batchBulkUpload.log
Fatal error: Class 'sfContext' not found in C:\xampp\htdocs\kalturaCE\symfony\util\sfCore.class.php on line 168