We clear data on demo servers from time to time.
So i have to add again all the units?
Yes.
@Tom Tomarin
Why dont you set up your own service when you have several units? VPS costs hardly anything these days and setting up traccar server is rather easy.
Or if you think thats a challenge, just check the many tutorials, here, google or youtube on how to set up your own server.
Is there any problem with Demo servers? I have some units in Germany Server and until morning i can't see anything!!!!