Next cloud on Truenas conflicting with nginxproxy manager and wordpres on openemdiavault

Hello

I am a newbie in in Docker portainer and nas storage application!
I have to servers at home
1 Openmdeiavault where i have installed plex radar docker portainer
nginx proxy manager WordPress with mariadb
2 second server is truenas where i installed only nextcloud which i keep to backup photos automatically from phone from the phone application

My problem is that next-cloud is crashing and making WordPress site admin not accessible. I had to stop truenas server in order to have WordPress and nginx runing
Is it possible to change the ports on nexcloud conf not to use 443 at all

thank you