Site 5 errors

All,

Sorry to spam you guys this weekend!

So, after tears and hours of heartache I think I might have spotted
where I
am going wrong. I have set up radiant 6 on site 5 accounts (the missing
instructions I needed pertain to setting up gem settings in
.bash_profile.
The problems occur when I import from a database - or at least it looks
that
way - can anyone tell me if this should cause a problem??

When I do so I get the 500 Apache Application error in /admin when
trying to
view a page.

Thanks,
Keith