WPMU Site

I'm having an issue with a wpmu site. We are using the Nimble theme by elegant themes, and when we add an image to the site, it is pulling from two different directories.

Here is the error we see on the homepage:
Warning: imagejpeg() [function.imagejpeg]: Unable to open '/home/wordpr3s/public_html/wp-content/blogs.dir/16/files/et_temp/7987532186_5d3a6451e1_b-132371_960x295.jpg' for writing: Permission denied in /home/wpignite/public_html/wp-includes/class-wp-image-editor.php on line 334

It makes no sense to us, and we are not sure if this is a theme issue or an issue with WPMU. We are not sure where the path is located.

-Jaki