Hey, Victron here.
I took the liberty of looking up your system on VRM, to see if I could find out for you whats wrong here.
And its the same as various other people have encountered: the (Classic-) UI on your GX device shows a white screen because you have installed mods on it, I presume quite a while ago, and most likely you’ve now updated your GX device without first updating those mods.
I made one change to your settings, which is that on VRM you had selected to see the Classic UI when opening Remote Console. I’ve changed that to the New UI.
Reason is that the New UI won’t break because of an (outdated) installed modification.
You’ll be able to access that as well.
To learn more about how to make the Classic UI work again, and what issue you ran into, see here:
Especially my answer in there.
Hope this helps, and hope this restores your confidence a bit.
The cause of the issue is that you (or someone else) has installed non-Victron code on that GX. Which can be super powerful and cool, but can also lead into issues like this unfortunately, at least, with the Modification checks page in the New UI, there are good options now to find out and get out of the problems.
Matthijs