Settlement Error in production Orders

Hi experts

1.we are following sale Order Costing & we are using Price Control-V in our Semifinished & Fg materials,

During Settlment we are getting error below

Material Price in Negative.how to solve this error

2.second Error we are getting if Consumption is done against Production Orderi.e 261(Movment) & no 101(production) movment.

how to solve this error