Results 2 issues of Ravi

https://github.com/Bibeknam/algorithmtutorprograms/blob/11ef340f8c8e60839a9dff395dd52b8752c537a6/data-structures/red-black-trees/RedBlackTree.cpp line 303 z is pointing to tree and is deleted Subsequent lines use the tree which is already deleted

When i run the code in cell 50, I am getting a entirely differnt forecast.. which is actually quite away from the actuals. What can be the reason ? ![forecast_ahead_plot](https://user-images.githubusercontent.com/4017811/213860788-ad580347-d226-45d4-80c4-f28f241cead3.png)...