Heard rumors that A330 ops are stuck. Is it true ?
Not sure what "stuck" is, but the A330 is gone, for lack of proper payments. There are several posts and links about it in the thread.
They have actually updated their website from a week ago:
"Arik Air operates a young fleet of 31 aircraft comprising of Boeing 737-300/700NG/800NG, Bombardier CRJ900, Bombardier Q400 and Airbus A340-500."
The A330 is no longer the "plane of the month" on their website
Edit: Arik still lists the A330 in their fleet on this page:
Arik Air Limited