Handle potential undefined dataframe in MLB ROO display

app.py

@@ -108,5 +108,8 @@ with tab2:
                 elif site_var_sb == "Fanduel":
                     disp_file = FD_MLB_ROO_Build(projections, floor_var_sb, ceiling_var_sb, std_var_sb, distribution_type_sb)
 
-    if disp_file:
-        st.dataframe(disp_file.style.background_gradient(axis=0).background_gradient(cmap='RdYlGn').format(precision=2), height=1000, use_container_width = True)
+    try:
+        if 'disp_file' in locals():
+            st.dataframe(disp_file.style.background_gradient(axis=0).background_gradient(cmap='RdYlGn').format(precision=2), height=1000, use_container_width = True)
+    except:
+        pass