Seafile no admin user and linked files are pointing to http://127.0.7.7 lokal not https

[Doprintityourself]

1. no seafile (admin) permission added to the system admin user or available:
   I have installed Seafile successfully
   can log in via sso but my admin account does not have admin previleges in seafile
   seafile app, configuration user and groups there is no" seafile (admin) permission" available or added to my admin user of yunohost. like for example for nextcloud.
   so how do I give my admin user from within younohost the admin rights?
2. Sharing does not create external https links !
   If I want to share a Link external and create it the link points to
   http://127.0.0.1:8000/f/d8c69..../
   something seems to go wrong during the installation.
   I was assuming to get an link with the https://tomydomain.nohost.me but this is not the case
   What do I have to do so the sharing to external uses the correct nohost.me domainname and link?