bulk optimization is not working.

Those who will buy for bulk image compression should definitely not buy this plugin. It’s a ridiculous plugin trying to do it using 2005’s methods.

There is no information text, why the error occurs, you have to find out for yourself. support service is very unprofessional.

Only sites with a small number of images can use this plugin. Those with a large number of images should try more professional plugins or your money will be wasted.