Fixed an error when a peron could not be found

src/cutecoin/core/account.py

@@ -285,7 +285,7 @@ class Account(QObject):
         :return: True if the account is a member of the target community
         '''
         self_person = Person.lookup(self.pubkey, community)
-        return self_person.is_member()
+        return self_person.is_member(community)
 
     def send_selfcert(self, password, community):
         '''

src/cutecoin/core/app.py

@@ -168,7 +168,7 @@ class Application(QObject):
                 with open(network_path, 'r') as json_data:
                     data = json.load(json_data)
                 if 'version' in data and data['version'] == __version__:
-                    community.load_merge_network(data)
+                    community.load_merge_network(data['network'])
                 else:
                     os.remove(network_path)
 

src/cutecoin/core/person.py

@@ -101,8 +101,13 @@ class Person(object):
         if cached and pubkey in Person._instances:
             return Person._instances[pubkey]
         else:
-            data = community.request(bma.wot.Lookup, req_args={'search': pubkey},
-                                     cached=cached)
+            try:
+                data = community.request(bma.wot.Lookup, req_args={'search': pubkey},
+                                         cached=cached)
+            except ValueError as e:
+                if '404' in str(e):
+                    raise PersonNotFoundError(pubkey, community.name)
+
             timestamp = 0
 
             for result in data['results']: