There's also
https://old.postimage.org/
https://postimage.io/
But I'm not sure if it will break too. And the ads...
What kind of hosting does PA use, that you don't have space for pics? I was able to get over 100GB of storage from a VPS(virtual private server) instance of some company for $5 a month... I guess all the pictures can add up?..
To view the PhotoBucket images, you can just right click and open in new tab for now...
(edit: not mass downloading anything, at least without permission. could put a lot of load on the forum)