please considere providing us with a small sample of representative data, so that its easy for us to help you. The article gives hints on how to do that, if you are unsure.
A minimal reproducible example consists of the following items:
A minimal dataset, necessary to reproduce the issue
The minimal runnable code necessary to reproduce the issue, which can be run
on the given dataset, and including the necessary information on the used packages.
Let's quickly go over each one of these with examples: