I can't access sandbox item libraries.

[arkngl117]

Someone knows how to fix this error:

[ashc]

Hey @arkngl117,

I moved your post over to our Developer boards in case other sellers are seeing the same thing.

It looks like we are actually experiencing some outages with Sandbox that our engineering team is aware of and working on. It should be working again shortly if it isn't already. Sorry for the trouble!