Thank you for your response.

I have checked my current .htaccess file and I have deleted the following line:

RewriteBase

Now, the site is working fine with the .htaccess file that I have configured.

I have installed the component some minutes ago, and my site had an Internal Error (500), I was not able to see my site, then, I renamed the .htaccess file and I was able to see my site again.

The question is, how can I restore my settings and use the last .htaccess file I had because if I rename the .htaccess to its correct name the error appears again.

Before installing this component I didn't have issues with my site using the .htacess file.