Sun NXT — sun nxt usage problem

Address:

Chennai, Tamil Nadu

I have already subscribe for sunnxt. 1 year. My next billing date is 23rd sep, 2019. Since 2 days i am unable to open sunnxt. If do, a message says, subscribe now. If i click ok, messag says this receipt is already used by other customer. If i click manage, it says next billing date is 23 9 19. If i click cancel subscription, it says you can still access it till sep'19. What do i do?

I have forgotten my login password. Can you help me by giving me an alternate password so as to enable me to watch.