I have emailed RadarBox24 and they have linked my feed to a station. On the website, under "My Stations," it lists PP-AI, which is my sharecode. I can confirm that I see a notification in PlanePlotter that says something along the lines of it has uploaded data to airnav. Also, I share data to FlightAware using PlanePlotter, and all my data is successfully uploaded to their site, so I do not believe it is a PlanePlotter issue.