Hello,
1/ Go to Settings > Permalinks > check if you use the Post name type http://prntscr.com/s7zqco and re-save permalinks.
2/ Add the next code in Theme Options > Theme custom CSS:
.product_meta .tagged_as .detail-content {
font-size: 0px;
}
.product_meta .tagged_as .detail-content a {
font-size: 16px;
margin-right: 5px !important;
}
Regards