CAN´T LOGIN. page disappear

Hello.

i try to manage the plugin.
i create a new login page.. …/milogin

didn´t work

http://www.miwebgratis.esy.es/milogin

i try to delete the plugin with the ‘disable_auth.txt’ suggestion

it didn´t work, and i couldn´t find the page, even the old one.

then, probably i did the worst choice, DELETE the plugin direct in the server
didn´t work
now I´M LOST. can´t manage my page, admin the page is hidden…
and there is no plugin in my server..

i will appreciatte some help here
thanyou

https://wordpress.org/plugins/lockdown-wp-admin/