Why when after empty the shipping cart, system auto turn to uncertain page that all images are not covered by water mark? (Note: all other functions are working good).
NO IDEA what you mean by this.. Would help if you provided a link to the site.. Would help if you explain IN STEP BY STEP DETAIL how you are getting to this page where you see the issue you are reporting..
My Site - Zen Cart & WordPress integration specialist I don't answer support questions via PM. Post add-on support questions in the support thread. The question & the answer will benefit others with similar issues.