Hi Gulshan,
many thanks to your response on my topic. Below you find my response to your questions.
1) MacBook Pro 2011 (macOS Catalina - Version 10.15.7) / iPhone SE 2016 (iOS 15.6)
2) MB: Enpass 6.8.2 (1082) -> AppStore / iPhone: Enpass 6.8.1 (633) -> AppStore
3) MB: AppStore / iPhone: AppStore
4) The WebDAV account on https://webdav.hidrive.ionos.com/ is a new account. The account was created a few days before I have opened this post.
5) I will create a separate account on my WebDAV server for your and will share it with you via mail.
Many thanks to your support.