Error: Missing argument 6 for video_cck_youtube_video()

Missing argument 6 for video_cck_youtube_video() in

/modules/emfield/contrib/video_cck/providers/youtube.inc in row 170.

And

preg_match() [function.preg-match]: Empty regular expression in
/modules/emfield/emfield.module in row 208.

What should be the solution?

Version used: last one.