Your screen grab indicates that you have entered this as a regular personal IRA contribution under Deductions & Credits, not as a SEP contribution. As I said in my original reply:
"A SEP contribution is entered in the self-employed retirement section of the business section of TurboTax. It is not to be entered anywhere under Deductions & Credits."
Please delete your erroneous regular IRA contribution entry and enter it in the business section as a self-employed retirement contribution.
