FF MAtrix and MSM

Hi

I had Feild Frame FF Matrix working great in my MSM sites but now i just get this error

Warning: array_keys() [function.array-keys]: The first argument should be an array in /home/grou/public_html/system/extensions/fieldtypes/ff_matrix/ft.ff_matrix.php on line 472

Warning: Invalid argument supplied for foreach() in /home/grou/public_html/system/extensions/fieldtypes/ff_matrix/ft.ff_matrix.php on line 478

Warning: Invalid argument supplied for foreach() in /home/grou/public_html/system/extensions/fieldtypes/ff_matrix/ft.ff_matrix.php on line 516

Anyone got any ideas?

I have tried Brandons site but got no replys

[Mod Edit: Moved to the Extensions: Discussion and Questions forum]