Thanks for your reply.
Log in problem, there are write is fixed but in my site was not fixed.
When before i click on the profile i will be log out.
Wp Activity plug in are not working and i have disactivate Wp Better Security becouse there are no an unistaller link who can reset all setting to defoult before Wp Better Security, its good i have backup my database, thanks onlt for this function.
I have deleted all database, put off my blog, remove Better Wp Security and now all work fine.
Sorry, Sorry and sorry bat i have no good experience with your plug in, is not for me.
Thanks again. I have saved my site from distruction. Thanks for have the backup database in settings.