I do not see an ads

Hi guys,
I am new here and I need help. Also I am newbie as a website builder.
Several days ago I made my site wider and planed to add some ads to already existed.
I got new code for banner and paste it to the master page, but I do not see it for several days! In my adsense account this ad has a status "new"
Also I added my old ad one more time and do not see it as well. I am puzzled... because do not understand the reason.

 

Is your website online? If not, they will not appear

 

try the old format code, I always use the same old format since 2003 and it still works fine and I can control every aspect directly from the html source.

 

I upload a website with new ads in internet a few days ago, but it does not working. Where can I get help?

 

My website is online but I do not see new ads. I tried to add the old one and do not see it again. What is the reason? Where can get more help?

 

Post your website here so we can give you some help and direction.

 

Thank you everybody for help. I found the reason: adsense allows only three ads on one page.