I have created a custom login page on my site and used the login_url filter to redirect to that page each time there’s a request. The filter looks like:

// Login page
function my_login_page($login_url, $redirect, $force_reauth) {
    // This will append /custom-login/ to you main site URL as configured in general settings (ie https://domain.com/custom-login/)
    $login_url = site_url( '/acceder/', 'login' );
    if ( ! empty( $redirect ) ) {
        $login_url = add_query_arg( 'redirect_to', urlencode( $redirect ), $login_url );
    }
    if ( $force_reauth ) {
        $login_url = add_query_arg( 'reauth', '1', $login_url );
    }
    return $login_url;
}
add_filter('login_url', 'my_login_page', 10, 3);

The problem is that since then everytime I login with my account and try to access the dashboard I can’t. Whether I am logged-in or not logged-in I get to my custom login page.

Is there a way to solve this problem? So far I tried:

• Remove .htaccess and restore it.
• Flush wp rewrite rules.
• Deactivate all plugins.
• Remove all functions that may create a redirection loop and
  activate one by one until I found it.