Owncloud upgrade error

Hey, i have problem with Owncloud 9.1.1 upgrade to Owncloud 9.1.2.
When i open updater, then this error:
What is wrong ? Can anybody help?

You posted here in Nextcloud. Nextcloud is a fork of ownCloud which focuses more on the community (e.g. no enterprise apps, you get all the functions in the free version as well). You can migrate your OC 9.1.1 setup to Nextcloud 10.0.2.