When making payments on the Ethereum network, gas fees can occasionally spike during high-traffic periods on Ethereum. Network gas fees are a separate fee from Spritz fees, and go to the blockchain network that you use to make a transaction. If the fees are high when you try to make a transaction, try bridging to another network like Polygon to make a payment there. You can also try the transaction again in a few hours and gas fees may have gone down.
Unfortunately, Ethereum gas fees are notoriously high at certain times, and the fees that you pay are calculated based on overall traffic on the network at any given time. You can learn more about how Ethereum's gas fees are calculated here.