This looks like a problem with the data structure you're feeding to HTML::Template. Try 
use Data::Dumper;
print Dumper(\@liblog);

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to see what you've got. Also to get interesting info about what went wrong, 
use CGI qw/:standard/;
use CGI::Carp qw(fatalsToBrowser warningsToBrowser);
print header;

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at the head of your script will give you the useful HTML::Template error info, inter alia.

Specifically in your case I may well be missing a bit of syntax, but I think %$item->{'ActionID'} probably ought to be $item->{'ActionID'} - otherwise you'll get an annoyingly interesting data structure? Or, did you initialise $viewliblog_page as an HTML::Template object? - this isn't clear from the chunk you posted

Also, you could save a bit of effort by modifying the elements in @log rather than creating a new array, as in 
for my $item (@log) {
    $item->{UID} = GetItemFromDB('RealName','UID',$item->{'UID'},'User
+')
    $item->{ActionID} = GetItemFromDB('ActionName','ActionID',$item->{
+'ActionID'},'Action');
}

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§ George Sherston

In reply to Re: Trouble with TMPL_LOOP assignment by George_Sherston
in thread Trouble with TMPL_LOOP assignment by spork

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