Ads module does not work

Hi, a few days I test system and I have a problem with ads. Ads do not work in anything I try to show me the following message:

Not Found

The requested URL / kunden/homepages/12/d392788271/htdocs/dolphin/modules/boonex/ads/classifieds.php was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

I do not know at this point whether the problem is in the system settings or hosted (although during the installation everything was ok).

I 1and1 hosting.

Until now, I had to deal with joomla and there is a little bit different specific operating system. Please help me.

I found the "fix" to the Ads module was to uninstall and reinstall the module under Admin>Tools>Modules. It didn't "take" on the first install for some reason. Not sure if this will work for your issue or not.