Update run.py

run.py

@@ -36,7 +36,7 @@ def respond(state, chat_history, visible_elemIDs):
   else: # react to Text-Input
     internal_state=0
     bot_message = f"I was in state \"{previous_state}\" and am now in state \"{internal_state}\" and ready to process \"{state}\". please click another button."
-    state=0
+    state="0"
     chat_history.append((state, bot_message))
   if(len(visible_elemIDs)==0): # if visible_elemIDs has zero length, reset
     print("restore visibility to "+str(defaultElemIDs))