+ Add error handler for set security pin

cm_bot.py

@@ -410,6 +410,9 @@ class CM_BOT:
             data=security_data,
             headers=self.set_security_pin_headers
         )
+        if 'java.lang.NullPointerException' in response.text:
+            return False
+        return True 
 
     def transfer_credit(self, t_username: str, t_password: str, amount: float):
         token = self.get_transfer_token()

cm_bot_hal.py

@@ -137,7 +137,9 @@ class CM_BOT_HAL:
             username = f_username,
             password = password
         )
-        cm_bot.set_security_pin(self.security_pin)
+        if cm_bot.set_security_pin(self.security_pin) == False:
+            cm_bot.logout()
+            raise Exception(f'Agent acc: {f_username} already has security pin!')
         cm_bot.logout()
 
         result = self.update_user_status_to_done(f_username)