@peggy18 You need to verify with the Social Security Administration that they did not make a mistake and send the IRS incorrect information concerning your SS number and being deceased.
To prevent this rejection next year, call the Social Security Administration (SSA) at 1-800-772-1213 to verify their records.
For now you will have to print and mail your tax return. See this TurboTax support FAQ for how to print and mail a tax return when using the online editions - https://ttlc.intuit.com/turbotax-support/en-us/help-article/printers-printing/print-mail-return-turb...
