think we need a see your code and some sample data.
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:
There are several different packages that will give us a forrest plot so we need to know which one you are using and to have some idea what your data looks like.