I just found a big problem on my site... I always had WP jQuery Lightbox working on my theme, but now it's working no more. I tried a lot of lightbox plugins but no one worked...
I checked everything:
- no plugin conflict problem
- I have <?php wp_head(); ?> in my header.php
- I had no theme changes
- I didn't update wordpress
Any idea? It's very strange... Thank you!