I have two different wp installed in the same server.
One I upgraded from 2.3 to 5.1
In this one, keeps "waiting for my http://www...."
every time I want to add a new post or a new image
however its ok when I modify the older ones
and I can't see the dashboard
On the second I installed a new wp (my server wp pre instalation is 2.1) and upgaded it to 5.1 before including any information...
in this one I get
"You do not have sufficient permissions to access this page."
when I try to login