When you use the SharkScope Desktop for the first time with a Silver subscription, the hand tracker works for the first 100 hands only. In order to remove the limit, you would need to upgrade to the Gold subscription. To do so, sign into the SharkScope website and go to the pricing page and you will see the option to upgrade.
To keep using the SharkScope Desktop to display the SharkScope statistics, go to the Layouts section of the HUD options and select “SharkScope HUD”. From the HUD panel preview at the bottom, I suggest you pick the “SharkScope only” option. Or you can, of course, customize the statistics that appear in the HUD as long as they belong to the “SharkScope” category.