You can also manually approve the Squid smart contract to use ERC20 tokens using squid.approve
awaitsquid.approve({ signer, spender:"0x6972A415e0572bd2E5E3c7DF307d0AFe32D30955", tokenAddress:"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48" amount: "100000000000000000000"// if not passed, inifite approval take place})