Read Migrating to v2021: https://phpmaker.dev/doc/migrate2021.htm, see the “Routing” section:
If you have any code that specifies a URL (e.g. pageRedirecting server event), you need to update it. In general, simply remove “.php” and the parameter names for the primary key fields, and separate them by “/”, e.g. change carsview.php?ID=1&foo=bar to carsview/1?foo=bar.
To setup URL Rewrite, see: https://discourse.hkvstore.com/t/migrating-to-v2022/655/1