Can't access the Wordpress Admin

[maxstore]

Hello,

I am Server Administrator and installed Wordpress in a sub directory. So I have designed the Page and almost done. Next Day I want to log in to example.to/wordpress/wp-admin, but I got
only the Screen:

Ooops... Error 404​

We are sorry, but the page you are looking for does not exist.​

Please check entered address and try again or go to homepage

The URL changed to: https://example.to/wordpress/index....tps://example.to/wordpress/wp-admin/&reauth=1

I tried many other Browser and Systems, but everytime I got this.

Thank you for help!

 

[maxstore]

Sorry, I solved it by deactivate the theme-my-login Plugin!