Unable to log in to site admin

Visit https://childcare.mantuaschools.com/wp-login.php

MichaelH, thanks for the link. However, even when using this link to log in, I get the same error as posted above.

Any other thoughts?

I am a complete novice in this field and
This is the first time i am using word press.

I have a similar issue…
when in login to my page E.g.
https://mydomainname.com/wp-login.php, i get the login in page, i enter my user name and password.

After this the page remains blank and nothing happens. I don’t know how to proceed, i need to edit my page now.
I am really excited about setting up my website….

Can someone please help me out. Please let me know if i need to provide additional info.

@yfandes and CapriciousMind;

Try:

1. clear your browser cache
2. clear your browser cookies
3. exit the browser
4. make sure firewall isn’t causing the problem