runtime error

et_loop(), func, *args, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/fsspec/asyn.py", line 99, in sync raise return_result File "/home/user/.local/lib/python3.8/site-packages/fsspec/asyn.py", line 54, in _runner result[0] = await coro File "/home/user/.local/lib/python3.8/site-packages/gradio/helpers.py", line 273, in create await self.cache() File "/home/user/.local/lib/python3.8/site-packages/gradio/helpers.py", line 308, in cache prediction = await Context.root_block.process_api( File "/home/user/.local/lib/python3.8/site-packages/gradio/blocks.py", line 1017, in process_api result = await self.call_function( File "/home/user/.local/lib/python3.8/site-packages/gradio/blocks.py", line 835, in call_function prediction = await anyio.to_thread.run_sync( File "/home/user/.local/lib/python3.8/site-packages/anyio/to_thread.py", line 31, in run_sync return await get_asynclib().run_sync_in_worker_thread( File "/home/user/.local/lib/python3.8/site-packages/anyio/_backends/_asyncio.py", line 937, in run_sync_in_worker_thread return await future File "/home/user/.local/lib/python3.8/site-packages/anyio/_backends/_asyncio.py", line 867, in run result = context.run(func, *args) File "app.py", line 172, in predict_price test_features_normalized = scaler.transform(test_features) File "/home/user/.local/lib/python3.8/site-packages/sklearn/utils/_set_output.py", line 142, in wrapped data_to_wrap = f(self, X, *args, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/sklearn/preprocessing/_data.py", line 508, in transform X = self._validate_data( File "/home/user/.local/lib/python3.8/site-packages/sklearn/base.py", line 546, in _validate_data X = check_array(X, input_name="X", **check_params) File "/home/user/.local/lib/python3.8/site-packages/sklearn/utils/validation.py", line 931, in check_array raise ValueError( ValueError: Found array with 0 sample(s) (shape=(0, 8)) while a minimum of 1 is required by MinMaxScaler.

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