It depends on whether this is considered taxable or not.
If your W-2 has nothing in Box 1, and Box 12 is marked "J", then you don't have to report it at all, you just keep it for your records.
If there is a taxable amount shown in Box 1 of your W-2,you would report this in the same place you report other W-2's: Federal Taxes>Wages and Income> Wages and Salaries (Form W-2).
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My sick pay is non taxable. So no amount in line 1 BUT I had federal tax withholding . Will not accept . Is there a other way to input or fo I have to paperfile
You definitely cannot e-file the form W2 with zero wages. It is incorrect to have Federal Tax Withholding on zero wages. However you could have amounts in boxes 3 and/or 5. If there is withholding, you should contact the issuer to correct. If there are zero wages, you do not need to file that W2. Here is a link with some discussion on the subject.