There is no error to fix. Since 2018, W-2 employees are not allowed to deduct job expenses, including continuing education classes and professional memberships or licenses. TurboTax only allows you to complete form 2106, because job expenses are deductible on state returns in AL, AR, CA, HI, MN, NY or PA. If so, this will come up in the state interview, in TurboTax.
Even in the "old days" , job expenses were only a misc. itemized deduction. You only got to deduct that portion of your misc. itemized deductions that exceeded 2% of your AGI, and then only if your total itemized deductions exceeded the standard deduction (which was doubled under the 2018 tax law. . (2% rule explained: https://ttlc.intuit.com/questions/2902781-what-is-the-2-rule ).
