Update app.py

app.py

@@ -185,7 +185,7 @@ with st.spinner("Loading, please be patient with us ... 🙏"):
         metadatas=[{"type": "support"} for _ in range(0, L)],
     )
     db=collection
-    if (curr_database in st.session_state) & (st.session_state.curr_database == dataset):
+    if ("curr_database" in st.session_state) & (st.session_state.curr_database == dataset):
         st.write("True")
     else:
         st.write("False")