You can ask a question in comments and it will be added to FAQ.
HitLeap has rejected my link, why?
Don’t worry. It is because some ad that is listed on your link at the moment is blacklisted somewhere. The ads change often so you can try again later.
It has been making me money but now it stopped. Why?
Check the answer above. It is possible that your link got blacklisted later on, because of some ad on the site. You can re-submit the link and it will work once again.