It seems the artist suddenly closed up shop on all fronts. His last update seems to have mentioned fanbox work is taking a lot of his time and announced to reduce the amount of images per release. Closing up shop entirely was unexpected and on all fronts at that (pixiv, twitter, et al).
Also for the translators/editors: Please make sure that you're using the raw/original image sizes when you're doing your edits. This applies to other raw providers that upload high res images as well. Please avoid using re-sampled images. Thanks!