Maintenance Order Costing Issue

Dear Experts,

I have configured Valuation Category (called spare parts) and I have assigned Cost element number 611300 to that Valuation category, but when I have created a maintenance order and assigned spare parts the costing tab don't show any data.

and when I tried to recalculate the costs the order log gives me that error.

the main problem that I don't use this cost element 120000 I have used another cost element 611300.

Any ideas.

Thanks.