Error in Nginx Proxy Manager Let's Encrypt

I have already having nginx installed and nginx Proxy Manager on docker installed since I am using hestia control panel

https://chiragnahata05-my.sharepoint.com/:i:/g/personal/photos_chiragnahata_ml/EWrYqn81qAhBllApCZUgO-YBrGOrpbYlRhUAmCf5Z302Kw?e=reXr5U - Image

Is the nginx the issue why my nginx Proxy Manager is not working

Nginx is taking up my port 80 that's why I am unable to assign it to nginx Proxy Manager - https://chiragnahata05-my.sharepoint.com/:i:/g/personal/photos_chiragnahata_ml/EZmgkkLiRYhMssx4-GhIfOAB9k-PdWOjdHKJfBpMrbypvg?e=oXBoZY

Please help me with this