Ana, Unfortunately, I do not have a system that I can load IE11 onto, all my PC's are either Windows10 or Windows XP and IE11 is not compatible.
You can try to reset IE11 to defaults :-
Reset Internet Explorer settings
Close all Internet Explorer windows. ...
Select the Advanced tab, and then select Reset.
In the Reset Internet Explorer Settings dialog box, select Reset.
When Internet Explorer finishes applying default settings, select Close, and then select OK.
If this does not work :-
It all depend how confident you are. The first thing I would try is to download Chrome and get it working so that you have a browser to fall back on. Then I would un-install IE11 then download a new copy and re-install it. When you go to the uninstall window, there may be an option to repair it.