I just checked the shopify status page and i see no incidents occurring in the past few days. You can always check if shopify is down https://status.shopify.com/
I see you have tried incognito, and chrome. Have you tired it on another internet browser? Internet Explore.
Try clearing your cookies.
Since about 3 weeks, i can use chrome, I can process orders, but cannot click on my sales channels. It shows a linking problem for some reason. So I've pretty much have been using Internet Explore.
I hope this helps.