Dealing with Negative predictions (GBM)

Hey guys,

I need help in dealing with the Negative predictions.
I trained a model using GBM just like the GBM video and my model is predicting negative values I don’t know why.
Data set does not contains negative values nor the test nor train nor the target variable
its just the predicted target variable.

Ps: sorry I cant share the Notebook (its a bit confidential)