As you have no doubt realised by now - Steem has been offline most of the day. This is largely due to issues encountered during the adoption process of the new version of the Steem software across the various kinds of nodes that keep the network live. Witnesses have been busy all day helping diagnose and resolve the situation as best we can and a fix is now available and being rolled out.
For now the plan is to revert back to Hard Fork 19 and to re-establish a stable network so that from there the necessary fixes can be made to Hard Fork 20.
My own witness servers are currently repairing and will ideally be back online in the next few hours.
The top 20 witnesses currently appear to have recovered enough for Steem to function again - we should see improved performance and stability in the next few hours.
Wishing you well,
Vote @ura-soul for Steem Witness!
(Witnesses are the computer servers that run the Steem Blockchain.
Without witnesses there is no Steem, Steemit, DTube, Utopian or
Busy... You can really help Steem by making your 30 witness votes count!)