There may be problems such as network delay and cell phone signal. Otter shopkeeper is an online-driven integrated catering and new retail service provider. When joining quickly, the network fluctuates, resulting in a timeout response and offline display. It may also be that the mobile phone itself is not connected to the internet. You can check the cell phone signal first to see if there is any connection to the network, or you can open the otter shopkeeper software to test the network.