Need Help - How to fix Kaltura video with elgg 1.5

I use kaltura 0.95 with elgg 1.5. Everything just looks good except when I click the "edit video",I will get error msg " Fatal error: Unsupported operand types in html/engine/lib/elgglib.php on line 258 "

Can anyone here tell me how to fix this problem? I will appreaciate for all the comments.Thanks!