Photoes opening issue

@melvik – You may have multiple Lightbox effects being applied by multiple plugins … have you tried troubleshooting to see if that is the case?

– Cais.

Hi & tnx for reply.
these are the list of my installed plugins:
Comprehensive Google Map Plugin
Contact form 7
jQuery Updater
LayerSlider WP
NextGEN Gallery by Photocrati
Regenerate Thumbnails
wp-jalali
WPBakery Visual Composer

Which one do u think has over effected each other?
this is my site I have problem, u may check
https://perseyanlaser.com/%DA%AF%D8%A7%D9%84%D8%B1%DB%8C/%D9%86%D9%85%D8%A7%DB%8C%D8%B4%DA%AF%D8%A7%D9%87-%D8%B5%D9%86%D8%B9%D8%AA%DA%AF%D8%B1%D8%A7%D9%86-%D8%A7%D8%B1%D9%85%D9%86%DB%8C-%D8%A7%DB%8C%D8%B1%D8%A7%D9%86/

i got the same problem – when i open a thumbnail in a gallery, i get two lightboxes over the other… ??

( also when i add a gallery to a post / page, in the edit window, i get a very small broken image, representing my gallery in the content. ?. it works but it isnt right. it does not show the first photo of the gallery at all in the post/ page edit, as ive seen in ‘how to’ videos )