Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I've tried to delete and redownload multiple times, this is the first thing I get after opening the app.
@maph2050 send e-mail to developer as mentioned
@maph2050 Solved by turning off gamecenter, changing region of osm app from iphone settings and opening app.