does not work – multiple issues

Hi
1: it “charges” me for images that already have been optimised.
2: it first says that there are 408 images and 4000 previews to optimize and when i start the optimization it works a while and then it changes the task and starts to reoptimize ALL 205.000 images again.
3: then it stops to work (stays on 13%) and throws out a lot of errors.
Example: “Too many inaccessible URLs from the same domain, please check accessibility and try again.)”

In your plugin are so many contradictionary messages …wow..

A.