@misteradamello, most likely it’s a conflict with your theme (the green circular button that opens the NextGEN lightbox doesn’t come from NextGEN).
To confirm a conflict, you have to temporarily deactivate the current theme and activate a WordPress default theme.
I did the test and actually with another theme its works.I’m not want to change the theme for this inconvenience . What can I do ?
@misteradamello, read the theme instructions / look at the theme options to figure out how to disable the action over the NextGEN lightbox, and/or ask the theme author.
It’s not a NextGEN issue.
Thanks, @tizz!
@misteradamello – As you noted this issue does not happen with another theme then the issue is most likely going to be within your theme itself (as @tizz suggested). Your other option may be to turn off the Lightbox Effect in NextGEN Gallery under Gallery > Other Options > Lightbox Effects … set this to no Lightbox.
– Cais.
