no lightbox works after upgrade to 4.2

Hey!

My website is https://www.leroyryser.ch

Ive updated to 4.2. first i got the white screen, after setting to “true” ive seen that theres a problem with the theme – which i bought from “different themes”. this one i had to update as well. So ive updated it.

Now, the problem are the lightboxes. no lightbox works after those two updates.

I receive the error codes:

Strict Standards: Only variables should be passed by reference in /home/www/web835/html/wp-content/plugins/nextgen-gallery/non_pope/class.photocrati_installer.php on line 192

Strict Standards: Only variables should be passed by reference in /home/www/web835/html/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/nextgen_admin/module.nextgen_admin.php on line 186

Strict Standards: Only variables should be passed by reference in /home/www/web835/html/wp-content/plugins/nextgen-gallery/non_pope/class.photocrati_installer.php on line 192

So what can i do now? i cant find some help in other forums and topics…

Sorry bout my english – im swiss and not that good in computer-english. so please be careful by formulating the words too much in high-tech-language.

thanks for helpin me!

leroy