New Outlook updates enable you to customize your experience and help you stay focused and organized

Download attachment in an e-mail (jpg image) got me this error message: 

{"Body":{"ErrorCode":500,"ExceptionName":"StorageTransientException","FaultMessage":"The process failed to get the correct properties.","IsTransient":true,"ResponseCode":"ErrorInternalServerError"}}

After this error https://outlook.office.com doesn't work anymore and I can't switch back to the old layout. 

:-(
Something went wrong
A problem occurred while you were trying to use your mailbox 

cId: 3CC0142749CB45138BD42F00EB2E9D3B
app: Mail
st: 500
reqid: 39438e86-5375-4403-9143-7ffe082f4b5d
wsver: null
efe: DB6PR0801CA0059
ebe: DB6PR0801MB1957
et: ServerError
esrc: SessionData
err: Microsoft.Exchange.Data.StoreObjects.StorageTransientException
estack: Microsoft.Mapi.MapiExceptionRpcServerTooBusy
ts: 10/9/2018 6:50:06 AM

I can't access my e-mail any longer. Please provide a link on how to get to my online webmail again? I have no access to my e-mail any longer after the above error message. Tried a different browser with incognito mode and several things. Nothing is working. 

Please provide a link on how to get to the old outlook layout again. 

UPDATE: I am able to login again after waiting 20 minutes. I would like to know if you can use an URL to switch between current and beta outlook.com?