Dynamic Chart shows series name with no values

Hello This is my first post on this forum so I hope I am providing appropriate details and thanks in advance for any help you might be able to provide.
Attached is a sample worksheet. My dilemma is that the charts show a series name even though there is no value attributed to the series. The chart is dynamic so I am aiming for the chart to expand and shrink as the values change. Any suggestions on how to resolve this?
The workbook is created with excel 2013 but MS365 could be used instead if that would help.
Thank you.