WP Smush Pro stuck on "Woohooo, we are crunching the numbers for you and than it is all done.&q

Hi,

I'm using bulk smush but I'm stuck on "Woohooo, we are crunching the numbers for you and than it is all done."

This happened before, so I deleted and reinstalled the plugin however it happened again on the 2nd bulk smush. I'm using a reduced bulk quota of 500.