unable to save media settings

Hi there,

With smush.it plugin enabled I am unable to save settings/media changes.

All I get is:

Warning: trim() expects parameter 1 to be string, array given in …/wp-admin/options.php on line 147

Warning: trim() expects parameter 1 to be string, array given in …/wp-admin/options.php on line 147

Warning: Cannot modify header information – headers already sent by …/wp-admin/options.php:147) in …/wp-includes/pluggable.php on line 875

Any ideas?

P.S.
No problems with saving when I temporary disable smush.it.

http://wordpress.org/plugins/wp-smushit/