Problem generating images

Good Morning.
I have been dealing with a problem with the plugin.
Until now it worked perfectly for me, but when I try to generate the images in “bulk” mode, it remains in the “waiting for generation” state indefinitely and never ends. I submit the image (https://ibb.co/Tr0T9px).
Do you know why it can be?
Thank you.
Greetings