A couple of points I missed in the tutorial, for reasons of length...
Maybe sometimes one can miss these points and problems can be related to it...
So, let me rectify it here: anyone who knows anything about PurE2 and the tutorials I wrote
knows about the difference between dynamic and permanent mounting of devices/partitions.
Have you mounted your devices properly, in a permanent manner (not dynamic mounting),
so your mounted devices/partitions do not "accidentally" swap places after a reboot, in which case
your OpenVPN folder will not be where the plugin is searching for it? You see, not every image
has this ability/feature, like PurE2 does.
OpenPLi and all other images (including PurE2) have automounting, which is dynamic.
It means that E2 by default, detects USB memory stick or HDD/SSD (SATA or via USB cable/port) or mSD devices
and mounts them automatically.
However, as simple as that is (especially for spiritually lazy users), when you have a more complex/demanding setup
(and the VPN is precisely that - "complicating things" to get them to be better, with more options working for you,
one of the features being YOUR SAFETY!!!) - I recommend PERMANENT MOUNTING!!!
So, one needs to think about it for about 15-20 minutes, just once, to understand it and then
put it to good use, to your advantage!!!
How to kill Automounting
MENU > pManager > Device Manager > Mount Manager > blue button > yellow button
(to switch Automount OFF) > Exit > do this for all devices/partitions that you want fixed
(for the full procedure, including more details see the above link).
In other words: our pManager can mount your devices/partitions permanently,
as you want them to be, which is something only our image does by design.
So, whenever you reboot your machine the devices/partitions will remain as you set them up,
i.e. they would not have swapped their places, as can frequently happen with the dynamic mounting.
Restart and it must work!