Hi @AurianeS,
There are many here who are happy to help. But in order to receive help, you should provide a reproducible example. A reprex should provide the minimal amount of data and code necessary to reproduce the issue. If you cannot provide the actually data, you should try to provide some fake data that has the same structure.
To learn more about a reprex, check out the following link: FAQ: What's a reproducible example (`reprex`) and how do I do one?