This can happen if you got your widget from somewhere else or where not logged in at the time you grabbed it from PokerDIY. It's simple to fix, all you need to do is edit the widget settings and insert the ID that it requires.
For example, on the My Player Scores (Summary) widget it needs your PokerDIY UserID to identify which scores to display. Check out the other FAQ - "What is my PokerDIY UserID?"
You can edit the widget settings by clicking on the cog-like icon on the right of the "Get & Share bar" that appears under your widget when placed on your site. This will open the Share menu and on the top right you will see another cog (on the left of the X close button). Click on this ("Options") and it will show you the settings for this widget (e.g "PokerDIY_UserID" or "PokerDIY_LeagueID").
This is where you need to paste the neccessary value. Read the other widget FAQsQs to find out how to get your particular LeagueID or UserID, depending on which widget you are looking at.