A problem with my adsense account

Hello, Happy new year , I have an acoount and 2 payments have been sent to me 5 days ago after that, I was trying to add more ads in my website, but everytime i add the code, the ads doesn't appear while the old blocks already running...besides I tried to add the code in my other sites and it works


any ideas about that

 

Did you remove the old ad blocks first? You are only allowed to show 3 ad units and 3 link units per page.

 

You can only show 3 AD in one page.

 

Thank you so much,it fixed, I appreciate your replies