Notice: undefined index: colors_list cache/smarty/compil/33/25/17a.file.product-list-colors.tpl.cache.php

[mercuryyy]

Hello,

The version of my Prestashop is 1.6.1.0.

Here is the issue I have where the colors are supposed to appears (see screenshot):

Notice: undefined index: colors_list in /home/www/cache/smarty/compil/33/25/17a.file.product-list-colors.tpl.cache.php on line 33

When i turn off/turn on the cache, it works again. But the same issue come back few hours later.

Do you have an idea ?
Thanks a lot

[JPresta.com]

I remember having this problem with a customer. It looks like the colors are not always set and so the cache is empty. The solution was to disable the use of the cache in FrontController in method addColorsToProductList.