why the confusion matrix display can be like this?

[confusion matrix][1]

[1]: https://i.stack.imgur.com/Z761r.png**strong text**

''' 
#TESTING di luar data training
scores_nadadasar = []
scores_nadadasar_testing = []

nadadasar_max_acc, nadadasar_mean_acc = run_all(12,class_names)
scores_nadadasar.append(nadadasar_mean_acc)

nadadasar_acc_testing = run_all_testing(12,class_names)
scores_nadadasar_testing.append(nadadasar_acc_testing)
'''