Update app.py

app.py

@@ -86,11 +86,13 @@ def minimax(board, depth, is_maximizing):
         return best_score
 
 def play_tic_tac_toe(evt: gr.SelectData, board, game_over):
+
+    if evt.index is None:
+        return draw_board(board), "Invalid action! Please click on the board.", False
+    
     if game_over:
         return draw_board(board), "Game already finished! Please reset to play again.", True
 
-    print(evt.index)
-    
     r, c = evt.index[1] // 100, evt.index[0] // 100
     if board[r][c] != "":
         return draw_board(board), "Invalid move! This spot is already taken. Please select an empty square.", False
@@ -124,4 +126,4 @@ with gr.Blocks() as app:
     board_image.select(play_tic_tac_toe, inputs=[board_state, game_over_state], outputs=[board_image, message_display, game_over_state])
     reset_button.click(reset_game, inputs=[], outputs=[board_image, board_state, message_display, game_over_state])
 
-app.launch(ssr_mode=False, show_error=True)
+app.launch()