This was reported by a user who had EDGE as the default browser. So I have two machines. One worked OK with Edge, and the other did not. Checked all settings and versions, both machines had the same version of Edge. So I tried various things and then suddenly Edge worked, but for no reason, I can see.
So I would suggest Reboot. Setting Chrome or another browser as default, and then back to edge again.
Not sure what else to say as it is a bit odd. SIM EFB makes a fairly standard call to ask the default browser to display the web page.