Well, If I'm only reading one chapter and then the author decide to ditch the comic altogether, there's no point in me to get interested or subbed to the comic.
I don't want to sound too harsh, but buddy, that's the truth. Update your comic, promote, interact with reader if there's a comment on your comic, and keep doing it. Maybe after like, 10 chapters, you can try to hold a fanart contest or something and that'll ring your reader that yeah, they can make a fanart for you.