I bought photoshop elements 11, download, install. deleted by mistake. then new download. tried to install - error message. support advisor can find no fault.
Did you run through the uninstall process or did you just delete some files or folder?
ist gelöscht worden von appcleaner.
I'm not sure if you mean an application called Appcleaner or the Adobe Clean Script tool. But in either case, there is very likely bits of the application left over. The proper uninstall process should have been used to prevent the behavior you are seeing now.
Here are the instructions to remove it by hand on Windows: http://helpx.adobe.com/photoshop-elements/kb/manually-remove-photoshop-elements-11.html
Or are you on Mac?