The message is simply stating that there is no Bing API found in the database so it is using the one that is bundled with NHSEO instead of one entered by the user.
As the last line states "Until a valid ID is entered NHSEO will continue to just use the bundled API ID", this will not prveent you from being able to do anything with No Hands SEO, it will not prevent you from updating and it will have no effect on the way you run the tool whatsoever.
To remove this message all you need to do is to go to the settings tab and click on any of the Save buttons in there.
The idea was that users could enter their own API ID(s) and perform more search tasks without getting limited by Bing, however very shortly after uploading the update certain things happened and I had to take the decision to move away from Bing as a search provider. The next version will include a more advanced searching method that will provide many more results and with a higher relevancy.