After being purchased by Snapchat, it appears that gfycat has been abandoned.
The Gfycat service is being discontinued. Please save or delete your Gfycat content by visiting https://www.gfycat.com and logging in to your account. After September 1, 2023, all Gfycat content and data will be deleted from gfycat.com
Like the sticker says: there’s no cloud, there’s just someone else’s computer. When the someone decides to use their computer for something else, this sort of thing happens.