I’ve been able to reproduce the problem and solve it on a similar environment. The following might help you.
If you are on CentOs and have followed the step by step tutorial, can you please check if the php-fpm service is correctly started, typically, with your usual user (that is part of
sudo systemctl status -l rh-php71-php-fpm
# or more generally
sudo systemctl status -l *php*
If the php-fpm service is not started, you cannot get any UI – and for the record you usually see a blank page with a 502 bad Gateway message when you connect to the UI.
In such case, and once again if you really have followed all steps of the install guide, you should add the
pydio user to the
sudo usermod -a -G apache pydio
Then log out any
pydio account that is open and back in before trying to start the app again. (group membership necessitate a logout to be taken into account).
Let us know if it solves your problem.