Quote Originally Posted by mc12345678 View Post
As some have discovered, version 2.1.1 of the zen-colorbox plugin is now available from here.
I just installed it and when main image tries to open, it continues in a loop and doesn't open, on the other hand I can open additional images and I can browse from pic to pic but can't get main image to show. It will stay in a continues loop.

This is the error from the logs:
[30-Aug-2017 20:00:29] PHP Fatal error: Call to undefined function zen_lightbox() in /.../includes/templates/my_template/templates/tpl_modules_main_product_image.php on line 24