fix: some exceptions in multi-agent mode

burpui/api/clients.py

@@ -573,7 +573,10 @@ class AllClients(Resource):
                     grants[serv] = 'all'
             for (serv, clients) in iteritems(grants):
                 if not isinstance(clients, list):
-                    clients = [x['name'] for x in bui.client.get_all_clients(agent=serv)]
+                    try:
+                        clients = [x['name'] for x in bui.client.get_all_clients(agent=serv)]
+                    except BUIserverException:
+                        clients = []
                 ret += [{'name': x, 'agent': serv} for x in clients]
 
         return ret

burpui/api/misc.py

@@ -213,7 +213,7 @@ class Live(Resource):
                 server not in bui.acl.servers(self.username)):
             self.abort(403, 'You are not allowed to view stats of this server')
         if server:
-            l = bui.client.is_one_backup_running(server)[server]
+            l = bui.client.is_one_backup_running(server)
             # ACL
             if bui.acl and not self.is_admin:
                 allowed = bui.acl.clients(self.username, server)