You have selected the correct driver for Amp2. The Amp/Amp+ driver is for an older card.
There is a reinstall button in the Spotify Connect plugin. If you remove the plugin from the list of active plugins, it will not be uninstalled but will only no longer be displayed.
Please burn a fresh Buster image onto the SD card, add the Spotify plugin via Settings/Reboot (do not install it yet!), then update Max2Play to the latest version and then install Spotify Connect.