After uncheck DE language and run updater I got this notification:
Error from 2019/05/03 14:16:28
Updater failed: Failed operations:
cznic-repo-keys-test/postrm: mount: mounting on /tmp/certstore failed: Invalid argument
umount: can't unmount /tmp/certstore: Invalid argument
Update from 2019/05/03 14:16:28
• Installed version 4.14.113-1-98c217cad6ab22101bb289c5936d189e.0 of package kmod-veth
• Installed version 2.1.1-2.0 of package lxc
• Installed version 2.1.1-2.1 of package liblxc
• Installed version 2.1.1-2.8 of package lxc-common
• Installed version 2.1.1-2.1 of package lxc-attach
• Installed version 2.1.1-2.1 of package lxc-stop
• Installed version 2.1.1-2.1 of package lxc-start
• Installed version 2.1.1-2.0 of package lxc-auto
• Installed version 2.1.1-2.1 of package lxc-console
• Installed version 2.32-2.0 of package flock
• Installed version 2.1.1-2.8 of package lxc-templates
• Installed version 2.1.1-2.8 of package lxc-hooks
• Installed version 2.1.1-2.8 of package lxc-configs
• Installed version 2.1.1-2.1 of package lxc-create
• Installed version 2.1.1-2.1 of package lxc-info
• Installed version 2.1.1-2.1 of package lxc-ls
• Installed version 2.1.1-2.1 of package lxc-monitor
• Installed version 2.1.1-2.1 of package lxc-monitord
• Installed version 2.1.1-2.1 of package lxc-snapshot
• Installed version 2.32-2.0 of package getopt
• Installed version 20171206.2 of package rpcd-mod-lxc
• Installed version git-19.122.38425-eb7d4ce-1.0 of package luci-app-lxc
• Installed version 2.32-2.0 of package blkid
• Installed version 2.32-2.8 of package partx-utils
• Installed version 3.1.3-1.1 of package rsync
• Installed version 8.23-3.1 of package coreutils-stat
• Installed version 0.2.5-3.6-1.0 of package foris-controller-storage-module
• Installed version 1.4-3.6-2.8 of package foris-storage-plugin
• Installed version 1.4.21-1.1 of package gnupg
• Installed version 1.4.21-1.6 of package gnupg-utils
• Removed package user-notify-l10n-de
• Removed package luci-i18n-base-de
• Removed package cznic-repo-keys-test
• Removed package luci-i18n-commands-de
• Removed package foris-diagnostics-plugin-l10n-de
• Removed package foris-l10n-de