IndexError: index 3 is out of bounds for axis 1 with size 3

This error occurs when you are trying to access an index that is outside the range of the array or list you are working with.

For example, if you have an array with 3 columns and you try to access the fourth column (index 3), you will get this error.

To fix this error, make sure you are accessing valid indices for your array or list. Also, check that the size of your array or list matches your expectations.