Update app.py

app.py

@@ -306,8 +306,9 @@ def plot_properties_dashboard(df: pd.DataFrame):
     p4 = figure(height=380, width=480, title="Drug-Likeness Distribution", toolbar_location=None,
            tools="hover", tooltips="@category: @value (@{value}{0.0%})", x_range=(-0.5, 1.0))
     
-    counts = df['Category'].value_counts()
-    data = pd.Series(counts).reset_index(name='value').rename(columns={'index':'category'})
+    # FIX: Correctly create the data for the pie chart
+    data = df['Category'].value_counts().reset_index()
+    data.columns = ['category', 'value'] # Explicitly name columns
     data['angle'] = data['value']/data['value'].sum() * 2*pi
     data['color'] = ['#2ECC71' if cat == 'Drug-Like' else '#E74C3C' for cat in data['category']]