Plugin is not installed in Lightroom.

Plugin is not installed in Lightroom.

Hello everyone, I bought Peakto and Peakto-Search. After installing Peakto-Search, a window opens saying ‘An error occurred while installing the plugin in Lightroom’.
There is also no entry in the module directory. This makes it impossible to open the found files in Lightroom.
Does anyone else have this problem or a solution? A ticket with support is still pending (no response). 

Greetings from Germany,
Michael