Dear Friend,
After much shooting I found the origin of the problem.
I want to share because I know that users of this and many other similar plugins have problems with the images.
I have read many of them … I’ve gone through all your post … in all forums … NONE ARE AS RESOLVE …
My final solution was to change the configuration of the plugin (formerly Better WP Security) “iThemes Security”. In the “Banned Users” section within the “setting” tab, uncheck the option for “Default Blacklist”, which says “Enable HackRepair.com’s blacklist feature”. Save the changes … and MIRACLE.
That it solved all problems.
Thanks for the plug, is excellent.
A hug