You are trying to set up kubernetes on your local machine but trying to use initialize it with kubeadmin init, returns the following error:
[init] Using Kubernetes version: v1.18.3 [preflight] Running pre-flight checks error execution phase preflight: [preflight] Some fatal errors occurred: [ERROR Swap]: running with swap on is not supported. Please disable swap [preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...` To see the stack trace of this error execute with --v=5 or higher
Switch the swap to off (Ubuntu command below) and try again.
sudo swapoff -a