added exception for lost connection

remote_control/robot.py

@@ -1,6 +1,4 @@
 import socket
-import sys
-
 
 class Robot:
     def __init__(self, marker_id, ip):
@@ -34,4 +32,6 @@ class Robot:
             except BrokenPipeError:
                 print(f"error: connection to robot {self.id} with ip {self.ip} lost")
                 pass
-
+            except ConnectionResetError:
+                print(f"error: connection to robot {self.id} with ip {self.ip} lost")
+                pass