hash sum mismatch ubuntu 20.04

C++
sudo rm -rf /var/lib/apt/lists/partial
sudo apt-get update -o Acquire::CompressionTypes::Order::=gzsudo rm -rf /var/lib/apt/lists/*
sudo apt-get update -o Acquire::CompressionTypes::Order::=gz
sudo apt-get update && sudo apt-get upgrade
Source

Also in C++: