it might help if you're posting the distribution and the exact link to the repository you're using.
If there is an issue with the package dependency itself and you're using the official repositories its also the best to report this directly to the bugtracker [1] as the maintainer of the packages are rarely reading this forums.
If you not use repositories / packages from your official distro repositories you most likely need to use the owncloud-files packages only.
AFAIK the ownCloud repositories are only supporting dependencies for the native distro repositories and not for such 3rdparty repositories like webstatic.
So just switch to the owncloud-files and remove the owncloud and owncloud-deps-php5 packages if you want to keep that 3rdparty repository.
I think you can also close your issue in [1] (or at least mention that you're using non-standard repositories) as the packager most likely won't support such 3rdparty repositories.
Ok, I've disabled the webtatic repo and reinstalled the owncloud to the fresh version. Of course, I've got php 5.4 instead of 5.6. Well, owncloud now works fine but I receive following message in the admin panel:
You are currently running PHP 5.4.16. We encourage you to upgrade your PHP version to take advantage of performance and security updates provided by the PHP Group as soon as your distribution supports it.
Please double check the installation guides ↗, and check for any errors or warnings in the log.
Is that good to depend on old php 5.4 in the fresh release of OC (9.1.4-3) instead of working php 5.6 in the 9.1.4-2.1?