Just a quick update for everyone:

If you are having issues with MarginBot updating your daily returns, its because of change bitfinex made to their API a while ago.  Just change the following and it should start working again:

/inc/ExchangeAPIs/bitfinex.php
LINE 148:
if($l['description'] == 'Swap Payment on wallet deposit'){

change to:
if(strtolower($l['description']) == strtolower('Swap Payment on wallet deposit') || strtolower($l['description'])==strtolower('Margin Funding Payment on wallet Deposit') ){

Should start updating your daily returns again.