Undefined index : share_name

Hello together,

i upgrade my ownCloud from 9.1.5 to 10.0.2 on a Debian 8 Machine.
I got Shared Folders for some Users that got migrated too.
But now my owncloud.log is spamed with "undefined index : share_name \/var\/www\/owncloud\/lib\/private\/Share20\/DefaultShareProvider.php#863" error messages.
I already figured out that its produced by the "files_sharing" App because if i deactivate it and run occ files:scan -all it doesnt show the error "undefined index : share_name" otherwise the users who got the folder shared will get these error messages. My oc_share table has no "share_name" column. Someone an idea how to get rid of these error messsages?
Thank You

join the discussion and post your details: https://github.com/owncloud/core/issues/28285