How do i restrict the shop type a player can use, i only want trade type

Each shop type has a dedicated permission. See https://github.com/Shopkeepers/Shopkeepers-Wiki/wiki/Permissions

Use a permission plugin, e.g. LuckPerms, (or the built-in Bukkit permissions.yml) to disable the default shopkeeper.player permission, and then assign the individual player shop permissions that you want to allow (e.g. shopkeeper.player.trade).

For questions regarding the permission setup, please consult the documentation of your permission plugin. They usually also provide a command to test/debug permissions.