Depreciation area: delete

Hi everybody

I have a error when I configure. The first I configure all information about asset for depreciation areas (01,02,15,20,30,31,32,41,51). But finally, I deleted depreciation area 41,51. Now I want assign again depreciation key for asset class. It notice error:

"Contact your system administrator (table error)

Message no. AA826

Diagnosis

Depreciation area 41 has not been defined in the chart of depreciation HDQC.

Procedure

Define the depreciation area using in FI-AA Customizing"

Can you help me to fix that error or Please help me to take again depreciation area 41,51

Thanks so much

Reguards;

Ngocpt