fix error message for non-existing database

nominatim/server/falcon/server.py

@@ -65,6 +65,8 @@ class NominatimV1:
         result = await self.api.status()
 
         self.format_response(req, resp, result)
+        if result.status and req.context.format == 'text':
+            resp.status = 500
 
 
 def get_application(project_dir: Path,

nominatim/server/sanic/server.py

@@ -61,7 +61,13 @@ async def extract_format(request: sanic.Request) -> Optional[sanic.HTTPResponse]
 async def status(request: sanic.Request) -> sanic.HTTPResponse:
     """ Implementation of status endpoint.
     """
-    return api_response(request,await request.app.ctx.api.status())
+    result = await request.app.ctx.api.status()
+    response = api_response(request, result)
+
+    if request.ctx.format == 'text' and result.status:
+        response.status = 500
+
+    return response
 
 
 def get_application(project_dir: Path,

nominatim/server/starlette/server.py

@@ -60,7 +60,12 @@ async def on_status(request: Request) -> Response:
     """
     parse_format(request, StatusResult, 'text')
     result = await request.app.state.API.status()
-    return format_response(request, result)
+    response = format_response(request, result)
+
+    if request.state.format == 'text' and result.status:
+        response.status_code = 500
+
+    return response
 
 
 V1_ROUTES = [