I haven't had this issue before on other sites and just logged into another site and saw the same issue happening and I know the plugin was working last week. I am thinking it might be on Robin Image server side.
Both the free edition and premium addition are not working when I go to the bulk optimization. I am not getting an error message, the two pre-load images next to status and credit just keep circling and I can't press the run button to optimize the images. I have disabled the firewall security on...