Hi @soyo , all is fixed now.
First of all, I want to thank you for the time you spent helping me out with the migration. Your steps did help A LOT and I could migrate all users and configuration.
Really… I appreciate it.
moreover…
Finally was a temp path issue… long story to explain.
however, I made a new post with specific issue.
But I researched on the forum and among a few posts, I got my needed solution.
In case you are interested, or other coming across my post and have same issue, follow this post and you will solve the problem with uploading…
https://help.nextcloud.com/t/sabre-dav-exception-badrequest-raspberry-pi-4b/69866