diff --git a/plugins b/plugins
index 1a520d1f..859ffbf4 160000
--- a/plugins
+++ b/plugins
@@ -1 +1 @@
-Subproject commit 1a520d1fe95a7aef5307e9e7befd5fbcbfd08809
+Subproject commit 859ffbf43335796e225525ff01257711485088d9
diff --git a/src/Connection/ConnectionServer.py b/src/Connection/ConnectionServer.py
index 090d96a6..c9048398 100644
--- a/src/Connection/ConnectionServer.py
+++ b/src/Connection/ConnectionServer.py
@@ -32,6 +32,7 @@ class ConnectionServer(object):
         self.port = port
         self.last_connection_id = 0  # Connection id incrementer
         self.last_connection_id_current_version = 0  # Connection id incrementer for current client version
+        self.last_connection_id_supported_version = 0  # Connection id incrementer for last supported version
         self.log = logging.getLogger("ConnServer")
         self.port_opened = {}
         self.peer_blacklist = SiteManager.peer_blacklist
@@ -157,8 +158,10 @@ class ConnectionServer(object):
         connection = Connection(self, ip, port, sock)
         self.connections.append(connection)
         rev = connection.handshake.get("rev", 0)
-        if rev > 0 and rev == config.rev:
-            self.last_connection_id_current_version += 1
+        if rev >= 4560:
+            self.last_connection_id_supported_version += 1
+            if rev == config.rev:
+                self.last_connection_id_current_version += 1
         if ip not in config.ip_local:
             self.ips[ip] = connection
         connection.handleIncomingConnection(sock)
@@ -225,8 +228,10 @@ class ConnectionServer(object):
                     raise Exception("Connection event return error")
                 else:
                     rev = connection.handshake.get("rev", 0)
-                    if rev > 0 and rev == config.rev:
-                        self.last_connection_id_current_version += 1
+                    if rev >= 4560:
+                        self.last_connection_id_supported_version += 1
+                        if rev == config.rev:
+                            self.last_connection_id_current_version += 1
 
             except Exception as err:
                 connection.close("%s Connect error: %s" % (ip, Debug.formatException(err)))
diff --git a/src/Site/SiteStorage.py b/src/Site/SiteStorage.py
index 89edd8c1..47d4c425 100644
--- a/src/Site/SiteStorage.py
+++ b/src/Site/SiteStorage.py
@@ -373,7 +373,7 @@ class SiteStorage(object):
             with self.open(inner_path, "r", encoding="utf8") as file:
                 return json.load(file)
         except Exception as err:
-            self.log.error("Json load error: %s" % Debug.formatException(err))
+            self.log.warning("Json load error: %s" % Debug.formatException(err))
             return None
 
     # Write formatted json file