Probleme nave barre

hi dear i have somthing wrong with my nav bare
i have the nav bare behind the section how i can fix this pleas


https://preview.webflow.com/preview/healtyfitnesshome?utm_medium=preview_link&utm_source=designer&utm_content=healtyfitnesshome&preview=2f5fe0780de3e7dbc8a950926100cc86&pageId=5fef571fe0fdc95b785275e5&mode=preview