Which Wolfram Language version are you using? It looks like this notebook was originally created in 13.0. If you are attempting to use in 13.1 you need to update it. You should be prompted to automatically update it the first time you press any button. Select "OK" from this dialog.
![enter image description here](https://community.wolfram.com//c/portal/getImageAttachment?filename=WFR-Update-Dialog.png&userId=21110)
It will take a few seconds to update then it should work. If you hit "Cancel" on the dialog once, then you should save it, close it, reopen it and hit "Check" again. Then you will get the prompt again.