Improve error handling

app.py

@@ -29,7 +29,7 @@ st.title("Loan application model example")
 def get_model_url():
     model_url = st.text_area(
         "Model URL (without the /explain endpoint, default is the demo deployment)",
-        "https://api.app.deeploy.ml/workspaces/708b5808-27af-461a-8ee5-80add68384c7/deployments/dc8c359d-5f61-4107-8b0f-de97ec120289/",
+        "https://api.app.deeploy.ml/workspaces/7dcdf61c-66d0-4b07-bd8d-7608bcd492d0/deployments/e2c1d1c6-ca68-414d-b071-6cd13ade15c1/",
         height=125,
     )
     elems = model_url.split("/")
@@ -66,13 +66,9 @@ with st.sidebar:
     model_url, workspace_id, deployment_id = get_model_url()
     st.session_state.deployment_id = deployment_id
     deployment_token = st.text_input("Deeploy API token", "my-secret-token")
+    
     if deployment_token == "my-secret-token":
         st.warning("Please enter Deeploy API token.")
-    # Split model URL into workspace and deployment ID
-
-    # st.write("Values below are for debug only:")
-    # st.write("Workspace ID: ", workspace_id)
-    # st.write("Deployment ID: ", deployment_id)
 
     client_options = {
         "host": host,
@@ -131,11 +127,19 @@ def predict_callback():
     request_body = form_request_body() # Make sure we have the latest values after user input
     st.session_state.exp = None
     with st.spinner("Loading prediction and explanation..."):
-        # Call the explain endpoint as it also includes the prediction
-        exp = client.explain(
-            request_body=request_body, deployment_id=st.session_state.deployment_id
-        )
-        st.session_state.exp = exp
+        try:
+            # Call the explain endpoint as it also includes the prediction
+            exp = client.explain(
+                request_body=request_body, deployment_id=st.session_state.deployment_id
+            )
+            st.session_state.exp = exp
+        except Exception as e:
+            logging.error(e)
+            st.error(
+                "Failed to get a prediction and explanation."
+                + "Check whether you are using the right model URL and token for predictions. "
+                + "Contact Deeploy if the problem persists."
+            )
 
     st.session_state.predict_button_clicked = True
     st.session_state.evaluation_submitted = False