Erro de URL ao apontar para subpasta indicada na instalação

I put my wordpress site into a subfolder called rdn. Then, using the .htaccess, I made the appointment. In the wordpress admin, I put the installation as http://www.folhadevilhena.com.br/rdn and the way to access the site as http://www.folhadevilhena.com.br

It happens that when a person clicks on the site logo, which points to http://www.folhadevilhena.com.br/rdn appears as file not found. How to solve it?

My .htaccess file looks like this:

# BEGIN WordPress

RewriteEngine On
RewriteBase /
RewriteRule ^ index \ .php $ – [L]
RewriteCond% {REQUEST_FILENAME}! -f
RewriteCond% {REQUEST_FILENAME}! -d
RewriteRule. /index.php [L]

# END WordPress