Insufficient Funds cast send

[V1C70RYG0D]

code: -32000, message: insufficient funds for gas * price + value, data: None

getting this error, using command
cast send ADDR "function()" --value VAL --private-key PRIVKEY --rpc-url URL

i have funds in account (metamask) sepolia testnet, is there any error in the setup ? or the command is incorrect?

motive -> call a function on smart contract with value from my metamask account, (setting it up for Ethernaut)