How to get rid of these errors manually? Thanks in advance.

Data Repair Phase


Correcting Phase 2 Errors
Item 19711 quantity of lost sales LY is below zero, must be corrected manually.
Item 34006 quantity of lost sales LY is below zero, must be corrected manually.
Item S12255 quantity of lost sales LY is below zero, must be corrected manually.
Item XX0067 quantity of lost sales LY is below zero, must be corrected manually.