SHUT (purple light) means that some serious problem transpired as well as the plugin will never try and reconnect quickly. Usually You need to initial resolve the trouble that triggered this state and after that reconnect manually utilizing plugin context menu described below. Alternativelly you may just restart AmiBroker. https://amibrokerdatafeed63084.jaiblogs.com/56010161/how-data-feed-for-amibroker-can-save-you-time-stress-and-money