2.0.21 not working with WordPress SEO from joos

NextGEN gallery 2.021 is not working with WordPress SEO from Joost v. 1.4.15.

I am unable to upload images and get the HTTP Error.

I reverted back to NextGEN Gallery 1.9.13 and everything seem to work normally.

Running WordPress 3.6 on IIS 7.5 with PHP 5.3.24

http://wordpress.org/plugins/nextgen-gallery/