It is difficult to say what is preventing you from being able to deduct a Traditional IRA contribution if your tax situation is similar to what it was in past years. No one here is able to see your return to give you that specific advice.
Take a look at the following TurboTax help article to learn more and see if any of these situations fit what you are seeing on your return:
How much of my Traditional IRA contribution is deductible in 2022?
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