Unfortunately stopped when loading ads

Hi, how to fix my game. It's stopped when loading ads. How to fix this?

Is that a different error than the one from yesterday?

sure, it's different error. I searched on the forum, I've changed metadata of AndroidManifest.xml as in this thread

http://community.stencyl.com/index.php/topic,36098.msg205175.html#msg205175

But when I generate the game. The value back to the default

<meta-data android:name="com.google.android.gms.version" android:value="4323000"/>

on the thread, the meta value must be

<meta-data android:value="6111000" android:name="com.google.android.gms.version"/>

Which AndroidManifest are you changing?  I think one inside the extension folder needs to be changed but I'm not sure since I don't use Admob.

where i can find the extension folder?.

It's in your workspace folder.

I've changed it and it doesn't get any crash now but the ads isn't appeared. I want to use intersitial ads. Do you know how to set it up.
I'm using this event on the play screen.

I can use intersitial ads now but the banner ads doesn't show