I found the solution!
First you must change your wp-content folder permission on your hosting server. Login to your website ControlPanel and search for the folder wp-content. Then look for “change permission”, tick all the boxes and you should have the permission from 755 become 777.
Go to your WordPress > Setting > Permalink
Then choose your desired permalink. Or just type /%postname%/ at the Custom Structure to get the best link to your post.
Hit button Save Changes.
Now, go back to your control panel, change back the permission to 755 for your security.
Test it.
It should work.
I done it. The example of the blog I did change the permalink is http://usahawanperkasa.com/blog/google-mengindex-facebook/
It was a sweet success after one hour of try and error.
Good luck to you!
