Elmakanico 
Near the bottom of user/plugins/sleekly-backend/plugin.php, change the line:
if (yourls_is_valid_user() != 1) {
to
if( defined( 'YOURLS_USER' ) ) {
Cuaderno de bitácora de apliques y cachivaches
Cuaderno de bitácora de apliques y cachivaches
Near the bottom of user/plugins/sleekly-backend/plugin.php, change the line:
if (yourls_is_valid_user() != 1) {
to
if( defined( 'YOURLS_USER' ) ) {
