If I may speak freely, @Fennecky, please remember, that readers and subscribers are EVERYTHING to creators like us. =) They like to feel appreciated and 3.8k people did not subscribe to your comic for nothing!
This means 3.8 readers care enough to subscribe to your comic.
3.8k readers LIKE your story/art/everything
That's a lot of people...
Now, I know, working on something you personally are not 100% behind is not easy, but I'd finish that story no matter what.
1) This shows respect to the 3.8k people who followed you from chapter 1 through the whole story
2) deleting everything without warning might as well be the most reputation damaging thing you can ever do - readers remember and some of them might not take that lightly
So, my advice is: communicate with your readers. Explain what is happening, where the problems lie and offer them to upload the rest of the story in b/w for the time being (you can always re-upload these pages in full color if you come around to do it)
In my experience, readers are very understanding, if you talk to them. If I read a comic/novel, where a creator explains why there is a change/hiatus/whatever due to personal reasons, I feel that the creator is a human being, too, although they might draw like a God XD And this makes me feel comfortable and understand their situation. =)
When I have to make an announcement on my webcomic for a hiatus or sth like that, I get positive reactions, just because I tell my readers what is going on and what they can expect from me. Often I get some moral support which I did not expect but which gives me a boost of extra strength and motivation!
I have already experienced some artists deleting their comics on other webpages and then start complaining in their blogs why ppl asked them about the whereabouts of said stories/comics. (Avoid pulling such a stunt at all costs - like I said, the audience remembers and the creators had a really hard time getting back up to their feet).
Trying to finish something you have started, shows, how much you care for your readers - and please keep in mind: Without readers who support us, who LIKE what we are doing, we creators are nothing.