New Tab custom panel

In the New Tab custom panel I run into the problem that it doesn’t allow me to add new ones. The “Add site” only allows me to add the name of the page but when I try to incorporate the link, the field is blocked and in the end, it does not allow me to add a new site I run into the problem that it doesn’t allow me to add new ones. The “Add site” only allows me to add the name of the page but when I try to incorporate the link, the field is blocked and in the end, it does not allow me to add a new site.
And now I just checked that it also does not allow me to edit the url.