Well, I had the same message. So I did the following:
I made wallet backup

$ magid backupwallet ~

Then I stopped the daemon

$ sudo systemctl stop magid.service

Then I downloaded source code from github and just did the same as before, just check the article above.
Steps are pretty much the same, but no needs to re-create systemctl config obviously.
Then I ran daemon again.

At the end I had a problem with my wallet (my wallet reported I had no coins, although according to the blockchain explorer everything was right), so I had to run

$magid repairwallet

to fix it, so it fixed and I got all my coins sitting in my wallet again.