Update app.py

app.py

@@ -316,6 +316,16 @@ def app_main(app_mode, example_files, model_name_files, clus_types):
 
 
     except Exception as e:
+        st.download_button(
+            label="Download results as json",
+            data=st.session_state["download_ready"] if st.session_state["download_ready"] != None else "",
+            disabled=False if st.session_state["download_ready"] != None else True,
+            file_name=(st.session_state["model_name"] + "_" + str(st.session_state["threshold"]) + "_" +
+                       st.session_state["overlapped"] + "_" + '_'.join(
+                        st.session_state["file_name"].split(".")[:-1]) + ".json").replace("/", "_"),
+            mime='text/json',
+            key="download"
+        )
         st.error("Some error occurred during loading" + str(e))
         #st.stop()