Hello Suzanne, we're aware of this issue. This pull request should fix it (https://t.co/g47O3OsHKh) and will be implemented in the v1.7.3.1. Note that the v1.7.3.0 will be released within the next weeks.👍
— PrestaShop (@PrestaShop) February 23, 2018
https://goo.gl/EO0ad1
https://goo.gl/xF8heB