Purchases code

i purchaced one kopi of layerslider 6 wordpress and i did not aktivite it before. When ever i try to activite it …i,m getting the following massege:

…you have reached maximum activation for this purchase​… why it is that…can i cancel my old purchase code in order to get new code?

No, you need to contact the author of the item and ask to reset your activations, with a reason as to why.