Based on Rollover from a 401k, your unrecovered contribution amount is zero.
If Turbotax won't take a zero, I posted a workaround above.
Otherwise, contact TurboTax support.
OR,
use override and file your return by mail.
Override is not available in the Online versions of TurboTax.
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the workaround is pretty simple and should work for you.
@Geom1
