That was reported yesterday already. I believe the dev/s are looking into it but it appears to be an issue with a new Lemmy version on the instances themselves since the bug is not limited to Memmy. Mlem has the same issue while Wefwef works for some reason.

Edit: I have the same issue on my instance, lemmy.dbzer0.com

Like Calvin said, this appears to be a bug with Lemmy rather than the app. It seems reproducible in other apps as well from what I can see. I'll look to make sure and if it is, see if I can find an alternative way to get the subscriptions.