Good evening my senior devs

I was taking this tutorial on nft mintin smart contract, it was deployed on Rinkeby Blockchain and "ethers" where used for the "cost"

I tried to deploy the same smart contract on KCC testnet, and decided to use 1Tkcs as the cost, but I keep getting this error.

I dont really know how to parse in a different token as cost or a fees for any function like "mint" in my smart contract. Please somebody... Teach me.