Cannot login

I am attempting to login at http://barkparkmi.com/wp-admin. When I enter that into my browser, I get a pop up box that says:
Authentication Required
“The server http://barkparkmi.com:80 requires a username and password. The server says: Restricted Area”
Then it has a box to enter my username and password, yet when I do, the blank box just pops back on the screen. If I hit “cancel”, then I get the following message onscreen:
“Unauthorized
This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn’t understand how to supply the credentials required.”

I recently switched servers, but everything was working fine after the switch. I am not sure if the error is on the server side or the wordpress side, but since wordpress will not take any of my information, I think it is on the wordpress side.

Any ideas how to fix this error? I am sure I am using the correct username and password, but when I try just entering my email or username to get the password sent to me, it tells me that the user and email do not exist. I’ve had this page up since 2013 I believe.

I have no idea which version of wordpress I am running since I can’t access the site.

Any help is appreciated! Thanks!