The administration can choose to permit or disable currency and language auto-modify features. Also, change the default retailer currency and language from the module management page. Once the module does not come across ideal currency and language as per visitors' area then default currency and language will be applied. - https://onlybookmarkings.com/story19202896/a-review-of-prestashop-addthis-integration-share-content-on-social-networks