--- a/core/portmanager.lua	Tue Feb 22 14:17:27 2022 +0100
+++ b/core/portmanager.lua	Tue Feb 22 13:41:05 2022 +0100
@@ -216,7 +216,9 @@
 end
 
 function get_service_at(interface, port)
-	local data = active_services:search(nil, interface, port)[1][1];
+	local data = active_services:search(nil, interface, port);
+	if not data or not data[1] or not data[1][1] then return nil, "not-found"; end
+	data = data[1][1];
 	return data.service, data.server;
 end