1/ We have options to show title next to those icons so just turn those options on -> http://prntscr.com/1qhq2lh then your validation will know that there are texts. But If your desing requires no-text then make some modification using custom css -> http://prntscr.com/1qhq80u.
After that we have still 3 empty buttons and no empty link buttons as we have one before.
2/ These errors -> http://prntscr.com/1qhqd61 are related to YITH Compare plugin so please, contact with plugin’s author to solve the issues or disable that plugin. Once we disabled it then no-errors are shown -> http://prntscr.com/1qhqed8.
3/ Contrast errors you should fix by your own side due to your design and with some extra changes to make them valid.
Example :
Validator shows you one of contrast errors on your promo text -> http://prntscr.com/1qhqg2f
The fix is next one :
change those colors in options http://prntscr.com/1qhqhaf or write your custom css if you don’t have options for fixing others contrast errors.
Color contrast checker -> WebAIM: Contrast Checker https://webaim.org/resources/contrastchecker/https://gyazo.com/96bc76cf88017f6a1481ef27983d5023
Result -> http://prntscr.com/1qhqltw ( before there were 10 errors )
