Dear Victoria and iDan:
Yesterday I was asked for support for access to my administration credentials and I also sent them the same report from the Chrome browser that I attached here yesterday.
Today I received an email informing that the problem has been solved and I see that there are 3000 images in queue and down. I have also been informed that we have to wait until Monday and not import products until the plugin is updated.
I thank you both for your kindness and patience