Hi Javier,
Thank you for the suggestion, this however didn't work. I deleted the complete folder > then restarted the GeoEventprocessor service> Checked the karaf.log (it didn't contain the "License status: GeoEventProcessor: licenseStatusSuccess) > Followed Step 1-6 > Checked the karaf.log again (now it did contain the "License status: GeoEventProcessor: licenseStatusSuccess) > Opened the browser, and again the same message...