Hi,
in the frontend a user can publish a ad. He can press publish and the admin gets the mail "new ad in page..."

But there are no ads in the backend.

Is there a problem with community builder or k2?

Or have I a problem when I import in my database the data "categories" and "fields" from an other database?

Thx for help

Hi Tompap,
thanks for you answer.

If you can to add from the backend is it working correctly ?
No, there are no ads, when I add them in the backend, too

Please try to active joomla debug system , then retry from the front.
When I activate the debug system, I've got a 500-page in the frontend

Check your database to see if your ads is in adsmanager_ads table
There are no ads in this table

, and if there is an entry in adsmanager_adcat for the ads id.
The entry ads id exists, but there is no entry in it

Do you have submission in 1 category or multiple if multiple try with 1.
I tried it in different categories, but only in a single.

did you try on fresh installation ?
No, I have it integrated into an existing installation with K2.

The problem is only when doing some import,
Is it the best to uninstall everything and re-create all the categories? Oh no. I have 230 categories ....

Thanks for help

The problem is solved. The problem was the import of the database table "fields". The import of the table "categories" was not a problem. But unfortunately I do not know why the problem exists .