error og_forum.module on line 442

When I create a new topic, the following errors are logged:

Location http://see.shareontheweb.com/node/add/forum/166?gids%5B%5D=22
Referrer http://see.shareontheweb.com/forum/166
Message array_keys() [function.array-keys]: The first argument should be an array in /home/shareontheweb/public_html/sites/all/modules/og_forum/og_forum.module on line 442.

Location http://see.shareontheweb.com/node/add/forum/166?gids%5B%5D=22
Referrer http://see.shareontheweb.com/forum/166
Message in_array() [function.in-array]: Wrong datatype for second argument in /home/shareontheweb/public_html/sites/all/modules/og_forum/og_forum.module on line 442.

No apparent problem then. The topic can be saved