I think I’m having the same issue.
I was updating my blog and used a plugin to lock the page. Some problem happened and I received PHP errors when going to the blog.
I removed all files and cleared the database. Reuploaded the new wordpress files, and installed.
It got to the part where it gave me my admin username/password. My blog itself has no design (not sure if this has to do with it) and clicking Log In redirects to the wrong spot.
My blog is here: https://dylan.clancrg.net/lcastdte/