Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
The new bootstrap v4 is quite different, would require a redo of all the interface elements. I tried it a few years back but quickly gave up.
While I would not be against someting like that, I just don't have the time to do it myself.
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