Hello, I've solved the problem.
The issue was in the file '<project_root>/bootstrap/cache/config.php' at the imagecache array. Please, check the following code lines that must be:
'imagecache' => array ( 'route' =>'cache' , 'paths' => array ( 0 => '/<project_root>/storage/app/public', 1 => '/<project_root>/public/storage', ), 'templates' => array ( 'small' => 'Webkul\\Product\\CacheFilters\\Small', 'medium' => 'Webkul\\Product\\CacheFilters\\Medium', 'large' => 'Webkul\\Product\\CacheFilters\\Large', ), 'lifetime' => 43200, ),
In my case, I found out that:
- 'route' was NULL
- arrays apparently pointing to no sense folder