OK, at this stage, I am pretty sure, that only English is fine to communicate, we will go back to dual language if it is a problem.
Yes, only English is fine
01) It is correct you have bunch of js files ....
Yes, the files are present
02) when you right click on PM and select ImageHost Grabber what menuitem is activated:
Yes, all menu items are present. Menu "options" available. Options Window works.
Menu "Get all pics on page" are present, but does not work. Nothing happens when you select it.
It then select the entry appears in the log:
20:18:01 04 Apr 2016 Entering HostFileService
I understand that the plugin can not properly receive the path to your files. If you update the host file manually, the plugin still does not download. Appears choose a folder to save, and download window does not appear. And the download does not start.