education expenses not allowed

How old was your dependent on 12/31/21?    Search for letme and then use the Jump to letme link from the search results.    That will take you to the Education Optimizer section where TurboTax will tell you what credits you qualify for based on the information you have entered in to TurboTax.    The information there may indicate the reason you are not qualifying for the credit this year.   

Go back through the education section to make sure you have entered all of the details correctly.   To go back through the questions, search for education and use the Jump to education link.  There are two credits available, the American Opportunity Tax Credit and the Lifetime Learning Credit.   

American Opportunity Tax Credit (AOTC)

You can use this credit for the first four years of college when working towards a degree.

• Maximum credit is $2,500 per eligible student.
• Must be enrolled at least half-time for at least one semester during the tax year.
• Up to $1,000 can be refunded to you.

Lifetime Learning Credit

There's no limit on the number of years you can use this credit for undergraduate, graduate and professional degree courses, including ones to improve job skills.

• Maximum credit is $2,000 per tax return.
• Can be used when you're only taking one class.
• You don't need to be working toward a degree.
• None of the credit is refundable.      

You say you're not getting a DEDUCTION this year. Be advised that 2020 was the last year for the Tuition and Fees Deduction (an actual deduction [adjustment to income]).  But, both of the tuition CREDITS are still available for 2021.