Alright, had to recover my password to post here but I found out what the issue is, at least for me, it seems wordpress must have modified the return value on one of their functions. Anyway I solved the issue by simply commenting out the following section of code in the plugins .php file:
`} else if ( $useenclosures == ‘yes’ && $enclosure = $item->get_enclosure() ) {
$enclosure = $item->get_enclosures();
echo ‘<img src=”‘.$enclosure[0]->get_link().'”‘;
echo ‘ alt=”‘.$item->get_title().'”/>’;