Well, all of a sudden my wakaba install is giving me this error:

Software error:

Malformed UTF-8 character (fatal) at wakautils.pl line 447, <FILE> line 3.

Line 447 is:

    $str=~s!([^\w/._\-])!"%".sprintf("%02x",ord $1)!sge;

which is part of:
sub clean_path($)
{

    my ($str)=@_;
    $str=~s!([^\w/._\-])!"%".sprintf("%02x",ord $1)!sge;
    return $str;

}

We've edited parts of our script and it's been working just fine for us for quite some time... this is a quite strange error and I'm hoping someone has a clue about what could be causing it. It happens when anyone tries to post or even when I try to rebuild caches. I'm assuming it will happen with anything that calls wakautils.pl.