Try changing the line 210 to:
$this->Group->addMember( $host );
Maybe this will help as the Group class appears to contain the addMember method.
If that doesn’t work, try:
$Group->addMember ($host);
I’m not running 0.32 so I can’t be a good tester for this! Sorry.
and if the variables really need to be adjusted for try:
$group = $this->Group->addMember( $host ); or
$group = $Group->addMember( $host );
Also, if The storage group is having the same type of issue try:
$storagegroup = $this->StorageGroup->addMember( $sn ); or
$storagegroup = $StorageGroup->addMember( $sn ); or
$this->StorageGroup->addMember( $sn ); or
$StorageGroup->addMember( $sn );
I know this is a lot, but it’s the best advice I can give.