'LGBMRegressor' object is not callable

The error message "'LGBMRegressor' object is not callable" typically occurs when you try to call a function or method on an object that is not callable.

In this case, it seems that you are trying to call the 'LGBMRegressor' object, but it is not a callable object. The most common reason for this error is that you might have forgotten to instantiate the object before calling it.

To resolve this issue, make sure you have properly instantiated the 'LGBMRegressor' object using the correct syntax. Here's an example of how you can create an instance of the 'LGBMRegressor' class from the LightGBM library in Python:

from lightgbm import LGBMRegressor

regressor = LGBMRegressor()

Make sure to check the documentation of the library or framework you are using for the correct way to instantiate and use the 'LGBMRegressor' object.