Over the weekend, a change was made to the trapper so that you could trade fewer than all of your furs if you wanted. This change to the URL threw a wrench into CLI's "trapper" and ASH's "trade_trapper" functions. At this moment, in the SVN the former has been fixed and the latter not so much yet, but the regular users are going to have to wait for the next scheduled release.
If you've been using trade_trapper(), you might consider substituting in the following function until the next release. The first parameter is for the number of furs you wish to trade, or 0 for all of them. I don't have any error-checking in the function, but I'm pretty sure that they closed the exploit that lets you trade your yeti furs for Misters Accessory a long time ago.
If you've been using trade_trapper(), you might consider substituting in the following function until the next release. The first parameter is for the number of furs you wish to trade, or 0 for all of them. I don't have any error-checking in the function, but I'm pretty sure that they closed the exploit that lets you trade your yeti furs for Misters Accessory a long time ago.

Code:
void temp_trade_trapper(int count, item it)
{
string command = "trapper.php?action=Yep&pwd&whichitem=" + item_to_int(it);
if (count > 0)
{
command = command + "&qty=" + count;
}
else
{
command = command + "&qty=1&max=on";
}
cli_execute(command);
}