Smart Check stuck on prior depreciation value for fully depreciated appliances in rental property that's been sold

Hello,

Smart Check flagged the value I input for fully depreciated appliances that are an asset for a rental house I sold in 2021.  I obtained this value from the prior depreciation value of the appliances in 2020 and it’s equal to the original cost of the appliances and also the prior depreciation value listed on the 2020 AMT Depreciation Report.  The error message says the AMT prior depreciation is too large and that the depreciation cannot exceed the business basis.  Any idea how to work around this flag?  Thanks.