Yea I'm getting it too. It's Semaphore's repo (or however you spell it). Since I've been getting that message, I've just assumed he's taken down the package. Since its the only package on his repo, that error is kicking out. At least that's been my assumption since its been several days now with that error. That repo is used for his new tweak Pandy. But it's possible he's taken it down, either to update it or remove it permanently from his repo. I say permanently because there's been a lot of controversy surrounding it. Maybe he just decided to take it down for good. Or he's just updating the tweak or his repo and it'll be back to normal soon. Not sure which it is.
I haven't been reading twitter lately. Maybe he tweeted something regarding his tweak and/or repo? If I get time later ill check out his twitter account. Hope this helps.
The stupid thing about this? I never even installed his tweak haha. The rare mornings when I have some free time to listen to the radio I always listen to sports talk radio on Tunein Radio. I only kept his repo in the off chance he added some new package that intrigued me, then I'd be able to both know about it and install it. That doesn't seem likely so I'm just gonna delete the repo.