Veronica, your suspicions are right. Unfortunately, there is nothing you can substitute when entering the name of the page - the name of the page is the name of the page! The only thing you can do is to change the name of the page.
To do that, create a new space page and do not include any special characters in the name. I don't even like to use spaces in page names. I use case to distinguish between words, as in GraphicFileStorage, which I keep as a repository for my images and then put the image template in profiles to display the images from that page where I want them to be located.
After you have a space page that will not cause links to break, you can merge the old page with the new one. After that, you'll be good to go.