There are multiple LaTeX experts that you could contact. Please feel free to contact me, the Engineering Librarian, to schedule an appointment. You can email me or use the schedule appointment button on this webpage.
I began using LaTeX in 2010, so I have many years experience. In addition, I have previous experience teaching a workshop series that instructs you on how to write a LaTeX article from start to finish.
If I can't help with the issue, there is another librarian that can help and I can refer you to them.