No, this will not affect your previously filed California tax return.
The amount owed on form 568 (if any) carries to form 3536, not to your CA 540 tax return. If you owe anything at the end of your 568, then open CA form 3536 (the 2024 version is here) and follow the instructions to make the payment.
The 568 appears to be a separate return that describes your LLC with details of your business operations, which information is not available otherwise on your CA 540 return. Hence it is filed separately and paid separately.
@amyonghwee
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