Based on the references to JSON, Tasks and "size of 2,147,485,614", I am gathering that you are running automation that is attempting to process a JSON payload of 2.1 GB in size. This payload size it too big. If my assumption is accurate, you will need to break the data retrieved by the automation into smaller chunks.
Based on this article below, max size for a document to be processed is 20MB. Though I couldn't find anything specifically on automation payload size, I would expect it to not be much different.
https://support.google.com/appsheet/answer/11828262?hl=en&sjid=1505586016012419578-NA
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