You don't need to correct anything.
No HSA contributions, whether made by you or your employer, is a deduction from income for California.
The California state return starts with the Federal AGI but does not recognize the HSA deduction that the federal return gave you, so that is all added back, what you made as contributions and/or what the employer paid.
It isn't the best wording as the contributions are not posted separately, yours and your employers. What ever is made through payroll is termed as employer contributions.
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