Just tried to do a USDC transfer on Gnosis, and this is what I see.
Looks like Gnosis gas fees are not being fetched for you (see my highlights and compare with yours).
Edit: Looks like we’re unable to fetch pricing information, which is why you cannot approve the transaction.
Can you please check the RPC URL you’re using for Gnosis chain? You can find this by navigating to Settings > Web3 > Wallet Networks.