The issue on Kusama was resolved at today ~17:29 UTC and Moonriver is now producing blocks.

01 Sep 2023, 18:51
The issue on Kusama was resolved at today ~17:29 UTC and Moonriver is now producing blocks 🎉 The Kusama community passed an update through governance that unfroze block production and allowed all parachains to resume operation. Thanks to Kusama’s governance model, this fix was executed immediately and automatically following its passage via OpenGov. For the Moonriver community, aside from the gap in block production, the issue is resolved and there is no ongoing impact. For more information 👇 To learn more about how OpenGov works, check out this explainer article: https://moonbeam.network/blog/opengov/