SHUT (purple gentle) means that some major problem happened as well as the plugin will likely not try to reconnect quickly. Typically It's important to to start with take care of the problem that caused this state and then reconnect manually using plugin context menu described down below. Alternativelly https://amibrokerdatafeed76420.techionblog.com/28941341/the-basic-principles-of-data-feed-for-amibroker