Redirection did not work Upgrade

We can not get to my first page after the update, the simplified Url no longer works

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hutman replied on at Permalink Reply
Need more information. What version did you have before, what version did you upgrade to, how did you do the upgrade, were there any errors during the upgrade?

I went to that link and a site came up, what is supposed to come up?
fabriqueamusique replied on at Permalink Reply
I upgraded with the new version 8.2.1..
The page that should appear is my home page.
But I made a mistake, I added a simplified Url and since I do not have my homepage.
I removed it but no change ...