As the title suggests, subscriptions are no longer loading. To find an issue with one of the mods that was making it so the game would auto-quit by itself on the title screen (turns out it was deus mons), I deleted all mods. I also had used BOSS previously, but I ended up deleting it. Now the only mods that have downloaded again are Improved Skill Books and Item Sorting.

Go to the Data Files screen in the launcher and see what happens.