davfs2: logged in as root but getting "user davfs2 does not exist"

Welcome on these forums. We hope we can help you and that you can help us.

That said, please take into account that we are human beings. Thus we can not guess what level openSUSE you use. Also we prefer copy/pasted terminal text above stories (and please post those between CODE tags: Posting in Code Tags - A Guide).

While you are reading this, I hope people more knowledgeble then I about this subject will come to your rescue in spite of your scanty information.