traccar.xml permission denied

Hi,
I installed the Traccar server on a Raspberry Pi with Unbuntu. Works fine...
Now, I want to modify the config file traccar.xml. Unfortunately, that doesn't work. When I try to save the file I get a failure "permission denied".
I tried to stop the server, but that doesn't help.

Can you please help me?

Btw: How can I serch for topics in the forum. Is there no search feature?

Make sure you set the correct write acces for the traccar install directory. It should have nothing to do with traccar but the ubuntu user write acces for that directory.

Here is the search page https://www.traccar.org/search/

Thanks!