Yes, the game has been under maintenance since yesterday.
The right thing to do is to develop it on a separate branch and test it locally, so they only need to take the site down for a few minutes to upload the changes, but this and a few other things made me realize that the devs of this game are inexperienced, so we need to be patient.
(I'm not speaking ill of the devs, everyone has to start somewhere. The artist has already admitted that he pays devs from third-world countries for development, and as a dev in a third-world country myself, I understand how beneficial this is for both sides.)