Tx for providing the verbose output. I've never seen this error:
ERR :Fp Loop detected with table on remote host
You could try to change line 2776 in libsnmp.pm to this:
$r = $session->get_table(-baseoid => $qbriO,( -maxrepetitions => 15 ));
and try 5,10,15 or more maxrepetitions.
As this device is obsolete, I wouldn't spend too much time on it though...