Cannot connect to my admin page- HELP

Hi,

The links that I have that our computer guy gave me to log in to the admin page (to make changes/add users etc) does not work anymore. It could be because there was a change in the server? I have left him a message but I really need to log in so hoping someone here can help.

There errors are:

Oops! Google Chrome could not find im.server:9090

and the other link I have that won’t work is:

Oops! Google Chrome could not connect to im.t3toner.com:81

Anyone know what I can do? I do have access to our server… I am just not very computer literate when it comes to this type of thing.

Thank you!
C~