WP SMUSH PRO is getting stucked with not being able to find some images

Aloha.

I am having an issue while trying to optimize my images in http://www.myhomeus.com
It is currently processing and stuck on 1571/2359 and giving me a bunch of error messages like:
Could not find /home2/myhomeu3/public_html/wp-content/uploads/2013/05/252w17_1a_10_-150x150.jpg
Could not find /home2/myhomeu3/public_html/wp-content/uploads/2013/05/252w17_1a-150x150.jpg
Could not find /home2/myhomeu3/public_html/wp-content/uploads/2013/05/2012-11-10_09.55.51-150x150.jpg
....