Firstly, kudos to you for taking the initiative to fix the leakage issue yourself. It's always great to try troubleshooting before seeking professional help. However, I couldn't find the [link|https://mycoffeecity.com/troubleshooting-guide-why-is-my-nespresso-machine-leaking/|specific guide|new_window=true] you mentioned. Nevertheless, here are some general steps you can follow to address this problem:
# Double-check the water tank.
# Inspect the seals.
# Descaling the machine.
# Check the drip tray.
# Run a water-only cycle.