Solved by KFrank in post #2 
              
              
                Hi Cici! 

The short answer is that your target contains a value of 23, but 
you are training a 10-class classifier for which your class labels 
must run from 0 to 9. 
(As an aside, please don’t post screen-shots of textual information. 
They can’t be searched or copy-pasted.) 

Your output has shap…