After upgrading my blog from from 2.7 to 2.7.1, single posts are showing 404 - Not Found - Error. Only homepage is working and no single posts, single pages can be displayed:
1. I have disabled all plugins, but still got the same error.
2. I created new database, install fresh 2.7.1 version and imported old files, but I still get the same error.
Please help me.
Thanks in advance.