Store images directory is not writable or doesn't exist.

Please, create image directory and set the write permissions (chmod 777) to it and to ALL subfolders/files it contains. The reasons for the error can be the following:

1. Path to image directory doesn’t exist. Create image directory.
2. Path to image directory doesn’t correspond to the path specified in store configuration.
3. There is no access permissions required. Set the write permissions (chmod -R 777 [images_dir]) to images directory and to ALL subfolders/files it contains.
4. The shopping cart may use non-default image directory. In this case contact Support Center of your shopping platform.
5. If Target store is Magento fresh install, create folders catalog/category and catalog/product in the folder media.