Manager Server 17.7.13
What is the error, @Abu_Hasan? You have shown screen shots of two versions of the same purchase invoice, but have not explained the circumstances under which you obtained them. More details are necessary, especially about where the first one came from.
Bro Update to the latest version and let talk, whatever your problem is.
I was creating a purchase invoice and the amount column shows a -0.6 balance.
Anyway, when I checked & unchecked the discount option, the problem disappeared.