First connect to your vps.
Commands -
1 - source /root/.bashrc
2-fuelup self update
fuelup update
fuelup default latest
(you can copy all 3 commands and paste in your terminal,when update will be done you will see this )
Then copy and paste those commands
sudo systemctl daemon-reload
sudo systemctl enable fueld
sudo systemctl start fueld
sudo systemctl status fueld.service
You will see this (fueld.service-Fuel node sepolia ) Check punct active - make sure its showed green active running ,after check your logs with command - sudo journalctl -u fueld -f -o cat (if logs showed okay your node is successfully updated and running )