Harmony ONE not received in Metamask

Sent Harmony ONE from gateio to Metamask but cant see any ONE in Metamask.
I have already added Harmony Mainnet to Metamask.
The transaction is shown as confirmed on harmony blockchain.
Transaction Hash - 0xecf0068cd605d93ea8f635abe01e2927a26654a43a57aaf70d9c4daa9e76bdcd

Can someone help me with this?

Your assets are still on the chain . Have you tried to import the HarmonyOne’s assets using the contract address?

You already gave me following link -
(https://)coinmarketcap.(com)/alexandria/article/how-to-connect-metamask-to-harmony

but, I was unable to follow the steps.
could you tell me how exactly can I " import the Harmony One’s assets using the contract address"?