I’m trying to start editing through JOSM, but it always fails to download the data…

The error message was :”Failed to upload data to or download data from ‘https://opengeofiction.net/api/0.6/map?bbox=160.2907192,2.8436768,160.4227551,2.9013968’ due to a problem with transferring data. Details (untranslated): Read timed out”

Do you guys have any idea where the problem is, and how should I solve it？Thanks.