I am new to metamask. I want to stake token in Hectordao. it requires HEC token in Fantom mainnet. I used spookyswap as DEX to bridge BNB (Smart Chain) >> BNB (Fantom). Now I have BNB token in Fantom mainnet and try to swap it to HEC for staking. At this stage, Metamask pops up for insufficient funds for $0.09 fees. my wallet only has BNB (Fantom) and it is around $50. why it is still insufficient?