Unable to delete the bill

Hi BlossomLimited, 

Thanks for the response. We appreciate your efforts in attaching this screenshot. 

This error message generally happens when you create an inventory adjustment that results in the item's stocks being less than zero. I suggest checking all your inventory adjustment transactions and making sure there aren't any that result in a negative value of the inventory stocks. 

Let us know if you require further assistance with this or if the issue persists. 

Thanks,
Genreve