Update app.py

app.py

@@ -104,7 +104,7 @@ def visualize_isnad(taraf_num, yaxis):
             teacher_narrations = row['Hadith Count']
         student_narrations = student_info['Number of Narrations'].to_list()
         if len(student_narrations):
-            student_narrations = teacher_narrations[0]
+            student_narrations = student_narrations[0]
         else:
             student_narrations = row['Hadith Count']