It sounds like you’ve installed the replicated scheduler, not the kubernetes scheduler. The kubernetes scheduler airgap package can be downloaded here as per the help center article and is installed with
cat ./kubernetes-init.sh | sudo bash -s airgap. It sounds as if you ran
cat ./install.sh | sudo bash -s airgap instead, or downloaded the non-kubernetes airgap package - this installs the native scheduler.
To bring your installation to a working state, you need to uninstall the native scheduler prior to running the kubernetes installation process above. You can do this by following the instructions here. There are quite a few files to remove!