Angel Broking — Order not placed through the mobile application

Today I placed buying order so easily buy through the application but the time of placed selling order I m not able to placed order, at the every time of placing order they pop up market is closed. Then I try to contact terminal person to sell my order they also faced same problem.after all these activity happened take so much time and due to your technical issue I losses my so much amount so please revert my loss amount.