AUC negetive value

Dear SAP Experts,

In the Balance sheet AUC asset value is showing negetive amount, actually the Client is using Plant wise balance for 5 plants. The negetive value is coming in 1000, 2000,3000 and 4000 plant which should come in Plant 9000 which is offsetting HO plant.

Now how to settle this issue, please anyone any idea?

thanks