"see server log for details"


I receive this error message
500 Internal Server Error The call failed on the server; see server log for details
but I do not understand what I have to look at . Where is the server log?

The error appears when I put this url in the FeatureCollection Source:


Note: I put the url as an image below since the editor cuts some parts of it



I think the parameters that you are passing to url is wrong


sure. but I’m curious about the server log. (by the way the problem is the file format, geojson requested json provided by me …)