Problem with upgrade 9.0.0 version to 9.1.1



I have server with Cloudlinux 6.8 (cPanel + softaculous).
User try to update over cPanel in softaculous section : owncloud to the latest version 9.1.10-21
When click on upgrade user gets the message:

It is not possible to Upgrade from to 9.1.1
Please upgrade to the 9.0.0 version before upgrading to 9.1.1

in this log
grep "starting upgrade" /home/username/ownclouddata/owncloud.log
I found it
8.1.30 => (2015-10-21) => (2015-12-05) => (2016-01-15) => (2016-04-01)

Here I found nothing special
grep "" /usr/local/apache/logs/error_log
grep "" /usr/local/cpanel/logs/access_log
grep "" /usr/local/cpanel/logs/error_log

I checked the versions: http://domainname/owncloud/status.php

where else can I look for a solution ?



Softaculous has a support section:

as well as a support forums:

where you might get help with their packages of ownCloud.