Can't upgrade with automatic upgrade (7.0.4 -> 8.0.0 -> 8.0.1 -> 8.0.2)

upgrade, community Version, web Package, debian 9.2, nginx 1.10.3, php 7.0.27-0/fpm, currently on pydio 8.0.1

Hi,
my automatic upgrade is broken:
I select the upgrade “pydio-core-upgrade-8.0.1-8.0.2.zip”, hit “Start Update”, click OK on the Dialog “Are you sure that you want to perform the upgrade?”. But then NOTHING happens.

on previous Upgrades there was a download in /data/tmp/upgrades that I manually installed following these instructions: https://pydio.com/forum/f/topic/cannot-perform-upgade-to-8-0/#post-110462
But now there isn’t even a download, so i can’t even upgrade manually :frowning:

I often get this error:
SqlTasksProvider.php: message=gzinflate():data error

my php.ini:
|max_execution_time 600
|max_input_time 60
|memory_limit 512M

I deleted: /core, /plugins and some files in /cache,
downloaded the complete package for 8.0.,
repaired all permissions
but it didn’t help.

I made a fresh install of 8.0.2.
Remade my Workspaces.
Now the gzinflate error is gone.
So I think everything is working. Except the Logout which was described in an other Post.
I hope upcoming upgrades will work now …