PROBLEM WITH SUBSCRIPTION SECTION

PROBLEM WITH SUBSCRIPTION SECTION

Today i get notification that a buyer cancel monthly subscription then i check that i have more buyer who subscribe my service on monthly basic but when i enter in order section it is showing that this order is complete but in subscription section it say "Active" , So that means i need to deliver my service every month until buyer cancel it ?
Also when i enter in that particular subscription SECTION I am not able to find that now where i need deliver him ,there no section of delivery it only says that "This order is complete. You can continue talking with the buyer in the conversation page." So here i need to deliver my service again or not ?? i am confused need your HELP

Thanks