No, no paywall. Microsoft stopped supporting the old Gallery so those scripts are now lost. If you can link to the article that references it, or otherwise give us an idea of what the script is supposed to do, we might be able to refer you to a suitable replacement.
If the idea is to export all the members of a given Team/Group, it might be as easy as running a single cmdlet. For example, you can do this with the Teams PowerShell module:
Get-Team -DisplayName TeamOne | Get-TeamUser | Export-Csv -nti blabla.csv
There's a more comprehensive script here: https://github.com/12Knocksinna/Office365itpros/blob/master/ReportM365GroupMemberships.PS1