In most cases You should first repair the trouble that triggered this condition after which reconnect manually making use of plugin context menu described beneath. Alternativelly it is possible to just restart AmiBroker. The 64 little bit Model of AmiBroker helps you to maximize this to many Gigabytes - https://damienvwvro.educationalimpactblog.com/50282877/a-simple-key-for-amibroker-data-feed-unveiled